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Thread: Convoy Lights: Option Comparison Tables and Images

  1. #1
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    Default Convoy Lights: Option Comparison Tables and Images

    Introduction

    I wanted to specify a Convoy S2+ Red with an XML2 T4-7A to produce roughly the same lumens in each mode as a T6-3B 7135*3 version I already had. Whilst crunching my way through the Cree Product Characterization Tool, it occurred to me that other people here might find a set of comparison tables and tint images useful. You'll find the tables at the end of this post, after the examples. The images are in post 7.

    I consider the Convoy S2+ to be a very nice light. If you'd like to know more, Chicken Drumstick has reviewed the T6-3B 7135*8 version here, and maukka has posted a comprehensive instrumental analysis of his T6-3B 7135*8 sample here, including spectrophotometric data and graphs. You can also find a description of how my T4-7A 7135*4 sample behaves when the cell runs low in post 26.

    Applicability

    Warning: You use the information in this post at your own risk. I have only used it in conjunction with the Convoy S2+ Red.

    However, it should apply in full to the following Convoy lights: S2 Grey; S2+ Black; S2+ Grey; S2+ Red; S2+ Blue; S2+ Green; S3 Black; S3 Grey; S4 Black; S5 Black; S6 Black; and S8 Black.

    In addition, some of it should apply to: BD01 Black (7135*8 driver only); BD02 Black (7135*6 driver only); BD03 Black (7135*4 driver only); C8 Black (7135*8 driver only); C8 Grey (7135*8 driver only); M1 Black (7135*6 or 7135*8 drivers only); M2 Black (7135*6 or 7135*8 drivers only); and S2+ Grey 18350/16340 version (7135*3 or 7135*4 drivers only, see also post 13).

    Option Availability

    Most intermediary dealers only sell a small subset of the possible combinations of Convoy options.

    The easiest way to be sure that you have access to the full range of Convoy lights and accessories, including all of the customisation options, is to buy from the original manufacturer's AliExpress store.

    Search Google for "shenzhen convoy electronics" and it should be the first link; double-check for the store number in the link, which should be 330416.

    Update: You can find my thoughts on some of the Convoy accessories in post 12.

    Convoy LED Tints

    LED Colour Temperature Description
    XML2 U2-1A 6500-7000K Cool White
    XML2 T6-3B 5000-5200K Neutral White
    XML2 T6-4C 4300-4500K Neutral-Warm White
    XML2 T5-5B 4000-4200K Warm White
    XML2 T4-7A 3000-3200K Very Warm White
    You can find comparison photos of the different tints lighting a garden environment by looking up the Convoy S2+ Red page on the original manufacturer's AliExpress store (see previous section). The tint photos are near the bottom of that page.

    Update: I have added a set of tint comparison photos to post 7.

    Examples

    I wanted a couple of Convoy S2+ Reds to act as backup lights to my two Fenix UC35s, so I wanted their medium modes to have lumen outputs broadly corresponding to the UC35's 180lm medium mode. I also decided to get neutral white LEDs, just because I could (the UC35 is cool white).

    Example 1: Check the Mid / Medium Mode / 40% table, run along the T6-3B row, closest match is 160 lm in the 7135*3 driver column. Check the Hi / High Mode / 100% table; that combination gives 370 lm. Check the Lo / Low Mode / 5% table; that combination gives 21 lm.

    The end result:
    Convoy S2+ Red
    XML2 T6-3B LED
    7135*3 driver
    21 lm ----- 160 lm 370 lm -----
    Fenix UC35 15 lm 50 lm 180 lm 480 lm 960 lm
    I later needed a desk lamp in a place where it was awkward to run a mains cable, so I pulled out one of my new neutral white S2+ Reds and mounted it with a Rofis AR01 mount.

    The 160lm mode was the perfect brightness, but the neutral white tint clashed with the much warmer-tinted room lighting. I also tried the UC35 to confirm that it was the tint that was bothering me, and yes, the UC35 was even more of a clash.

    OK, I thought, I'll buy another S2+ Red, but in a very warm white with the medium mode again at about 180lm. Checking the box for the room light - an 18W Philips Master LED bulb - yielded a colour temperature of 2700K. The closest Convoy LED option is the XML2 T4-7A at 3000-3200K.

    Example 2: Check the Mid / Medium Mode / 40% table, run along the XML2 T4-7A row, and there's a perfect match at 180 lm in the 7135*4 driver column. Check the Hi / High Mode / 100% table; that combination gives 400 lm. Check the Lo / Low Mode / 5% table; that combination gives 23 lm.

    The end result:
    Convoy S2+ Red
    XML2 T4-7A LED
    7135*4 driver
    23 lm ----- 180 lm 400 lm -----
    Convoy S2+ Red
    XML2 T6-3B LED
    7135*3 driver
    21 lm ----- 160 lm 370 lm -----
    Fenix UC35 15 lm 50 lm 180 lm 480 lm 960 lm
    My new very warm white S2+ Red works wonderfully as a battery-operated desk lamp


    Comparison Tables

    It looks like Convoy specs use LED lumens, so I've discounted the LED lumen figures from Cree by an arbitrary 20% for optical losses and rounded the numbers to 2 significant figures. Cree LED lumens are in normal type, my discounted & rounded lumens are in italics.

    Whilst using the Characterization Tool, I left the LED junction temperature at the default 25°C. Where driver currents fall awkwardly between current steps in the Characterization Tool, I have estimated an interpolated number to 2 significant figures.

    Hi / High Mode / 100%

    Driver
    LED Bin 7135*3
    1050mA / 1050mA
    7135*4
    1400mA / 1400mA
    7135*6
    2100mA / 2100mA
    7135*8
    2800mA / 2800mA
    XML2 U2-1A
    6500-7000K
    489.4 lm
    390 lm
    623.8 lm
    500 lm
    860.6 lm
    690 lm
    1067.3 lm
    850 lm
    XML2 T6-3B
    5000-5200K
    456.8 lm
    370 lm
    582.3 lm
    470 lm
    803.2 lm
    640 lm
    996.1 lm
    800 lm
    XML2 T6-4C
    4300-4500K
    456.8 lm
    370 lm
    582.3 lm
    470 lm
    803.2 lm
    640 lm
    996.1 lm
    800 lm
    XML2 T5-5B
    4000-4200K
    424.1 lm
    340 lm
    540.7 lm
    430 lm
    745.9 lm
    600 lm
    925 lm
    740 lm
    XML2 T4-7A
    3000-3200K
    391.5 lm
    310 lm
    499.1 lm
    400 lm
    688.5 lm
    550 lm
    853.8 lm
    680 lm

    Mid / Medium Mode / 40%

    Driver
    LED Bin 7135*3
    420mA / 1050mA
    7135*4
    560mA / 1400mA
    7135*6
    840mA / 2100mA
    7135*8
    1120mA / 2800mA
    XML2 U2-1A
    6500-7000K
    212.7 lm
    170 lm
    278.4 lm
    220 lm
    ~400 lm
    320 lm
    ~520 lm
    420 lm
    XML2 T6-3B
    5000-5200K
    198.5 lm
    160 lm
    259.9 lm
    210 lm
    ~380 lm
    300 lm
    ~490 lm
    390 lm
    XML2 T6-4C
    4300-4500K
    198.5 lm
    160 lm
    259.9 lm
    210 lm
    ~380 lm
    300 lm
    ~490 lm
    390 lm
    XML2 T5-5B
    4000-4200K
    184.3 lm
    150 lm
    241.3 lm
    190 lm
    ~350 lm
    280 lm
    ~450 lm
    360 lm
    XML2 T4-7A
    3000-3200K
    170.1 lm
    140 lm
    222.8 lm
    180 lm
    ~320 lm
    260 lm
    ~420 lm
    340 lm

    Lo / Low Mode / 5%

    Unfortunately, the Characterization Tool doesn't go this low, so these are all estimated to 2 significant figures by dividing the lumen figures for higher currents. Given that LEDs are more efficient at lower currents, these estimates are likely to be slightly too low; as a ballpark indication, by up to 5%.

    Driver
    LED Bin 7135*3
    52.5mA / 1050mA
    7135*4
    70mA / 1400mA
    7135*6
    105mA / 2100mA
    7135*8
    140mA / 2800mA
    XML2 U2-1A
    6500-7000K
    ~28 lm
    22 lm
    ~36 lm
    29 lm
    ~55 lm
    44 lm
    ~72 lm
    58 lm
    XML2 T6-3B
    5000-5200K
    ~26 lm
    21 lm
    ~34 lm
    27 lm
    ~51 lm
    41 lm
    ~67 lm
    54 lm
    XML2 T6-4C
    4300-4500K
    ~26 lm
    21 lm
    ~34 lm
    27 lm
    ~51 lm
    41 lm
    ~67 lm
    54 lm
    XML2 T5-5B
    4000-4200K
    ~24 lm
    19 lm
    ~31 lm
    25 lm
    ~47 lm
    38 lm
    ~63 lm
    50 lm
    XML2 T4-7A
    3000-3200K
    ~22 lm
    18 lm
    ~29 lm
    23 lm
    ~44 lm
    35 lm
    ~58 lm
    46 lm

    Finally, you can get custom mode groups that include Mid / Medium Mode / 30% or Lo / Low Mode / 10% levels, so here are a couple of tables for those.

    Mid / Medium Mode / 30%

    Driver
    LED Bin 7135*3
    315mA / 1050mA
    7135*4
    420mA / 1400mA
    7135*6
    630mA / 2100mA
    7135*8
    840mA / 2800mA
    XML2 U2-1A
    6500-7000K
    ~160 lm
    130 lm
    212.7 lm
    170 lm
    310.4 lm
    250 lm
    ~400 lm
    320 lm
    XML2 T6-3B
    5000-5200K
    ~150 lm
    120 lm
    198.5 lm
    160 lm
    289.7 lm
    230 lm
    ~380 lm
    300 lm
    XML2 T6-4C
    4300-4500K
    ~150 lm
    120 lm
    198.5 lm
    160 lm
    289.7 lm
    230 lm
    ~380 lm
    300 lm
    XML2 T5-5B
    4000-4200K
    ~140 lm
    110 lm
    184.3 lm
    150 lm
    269 lm
    220 lm
    ~350 lm
    280 lm
    XML2 T4-7A
    3000-3200K
    ~130 lm
    100 lm
    170.1 lm
    140 lm
    248.3 lm
    200 lm
    ~320 lm
    260 lm

    Lo / Low Mode / 10%

    Unfortunately, the Characterization Tool doesn't cover the lower currents, so those are estimated to 2 significant figures by dividing the lumen figures for higher currents. Given that LEDs are more efficient at lower currents, these estimates are likely to be slightly too low; as a ballpark indication, by up to 5%.

    Driver
    LED Bin 7135*3
    105mA / 1050mA
    7135*4
    140mA / 1400mA
    7135*6
    210mA / 2100mA
    7135*8
    280mA / 2800mA
    XML2 U2-1A
    6500-7000K
    ~55 lm
    44 lm
    ~72 lm
    58 lm
    109 lm
    87 lm
    144.2 lm
    115 lm
    XML2 T6-3B
    5000-5200K
    ~51 lm
    41 lm
    ~67 lm
    54 lm
    101.7 lm
    81 lm
    134.6 lm
    108 lm
    XML2 T6-4C
    4300-4500K
    ~51 lm
    41 lm
    ~67 lm
    54 lm
    101.7 lm
    81 lm
    134.6 lm
    108 lm
    XML2 T5-5B
    4000-4200K
    ~47 lm
    38 lm
    ~63 lm
    50 lm
    94.4 lm
    76 lm
    125 lm
    100 lm
    XML2 T4-7A
    3000-3200K
    ~44 lm
    35 lm
    ~58 lm
    46 lm
    87.2 lm
    70 lm
    115.4 lm
    92 lm
    Last edited by Phlogiston; 06-01-2016 at 03:34 AM. Reason: referenced maukka's thread.
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  2. #2
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    This, sir, is spectacular! Thank you!!

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    Default Re: Convoy S2+ Red: Option Comparison Tables

    Great job, thank you!

    I wish I had seen your table a week ago when I ordered my Convoy S2+ XML2 T6-3B 7135*3. I would have considered warmer tint and another driver. But on the other hand 370 lm output makes and excellent EDC that you can borrow to a non-flashaholic friend.
    The darkness here is different.

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    Default Re: Convoy S2+ Red: Option Comparison Tables

    When I first learned about the options available for Convoy flashlights, I thought 8*7135, at 2.8A, was the way to go. I am now aware that those lights overheat within minutes. My current thinking is that 3*7135 or 4*7135 is more practical.

    In addition to generating less heat on high, your lower modes are better than you get with 8*7135.
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    You are all very welcome. I really appreciate knowing that you consider it useful

    Quote Originally Posted by D6859 View Post
    But on the other hand 370 lm output makes and excellent EDC that you can borrow to a non-flashaholic friend.
    I feel the same way. I never let non-flashaholics borrow a powerful light unless it has an automatic stepdown or temperature regulation. In my view, 1A (300 - 400lm depending on the LED bin) is about the maximum one can get away with for continuous operation in an 18650 light. My Fenix UC35 is relatively good at dissipating heat because of the extra metal to accommodate its USB charger, but even that light steps down from 480lm to 180lm after 30 minutes.

    If the light is going to be tailstanding or clip mounted for a long period, I'll set it to a lower level still, since there's no "cardiovascular cooling system" as there would be in hand-held operation. I'm fine with that, though, because 150 - 200lm is usually quite good for things like spotlighting a work surface or tailstanding to light a room during a power cut.

    Quote Originally Posted by KeepingItLight View Post
    When I first learned about the options available for Convoy flashlights, I thought 8*7135, at 2.8A, was the way to go. I am now aware that those lights overheat within minutes. My current thinking is that 3*7135 or 4*7135 is more practical.

    In addition to generating less heat on high, your lower modes are better than you get with 8*7135.
    I do like that aspect. The 10 - 30lm range works well for me as a general-purpose level for short distance work, and the 18650 cell provides an amazing runtime under those circumstances.
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    Quote Originally Posted by KeepingItLight View Post
    In addition to generating less heat on high, your lower modes are better than you get with 8*7135.
    Exactly my thoughs when I was conforting myself after loosing the extra lumens I'm getting more excited about the light. I hope it is delivered to me next week.
    The darkness here is different.

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    Default Re: Convoy S2+ Red: Option Comparison Tables

    I decided to add some tint comparison images to this thread, but preferred not to make the first post any larger than it already is, so I've put them here instead.

    First, a nice side-by-side comparison of Convoy LED tints. This image originally came from a Russian message board; I have cropped and rehosted it to meet CPF requirements. Unfortunately, I don't read Russian, so I can't attribute it to its original creator.



    Second, a set of images showing the effect of each Convoy LED tint in a garden setting at night. These are from the Convoy S2+ Red sales page on AliExpress; they are copyright to Shenzhen Convoy Electronics Co., Ltd. Again, I have resized and rehosted them to meet CPF requirements.











    These images were all rehosted using PostImage.
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    Wow, I LOVE it!! STELLAR combo: first post of information and then the pics!

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    Flashaholic* D6859's Avatar
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    3B doesn't look so bad after all
    The darkness here is different.

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    Default Re: Convoy S2+ Red: Option Comparison Tables

    Awesome thread,thank you!!

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    Default Re: Convoy S2+ Red: Option Comparison Tables

    Quote Originally Posted by D6859 View Post
    3B doesn't look so bad after all
    One of of my lights has exactly the same configuration, and I liked it enough to order another (now in transit), so I'm hoping that you'll enjoy yours too

    Quote Originally Posted by Grijon View Post
    Wow, I LOVE it!! STELLAR combo: first post of information and then the pics!
    Quote Originally Posted by ven View Post
    Awesome thread,thank you!!
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    The first post now includes a list of other Convoy lights it should be useful for.

    I've also bought and received some of the Convoy accessories, so here are my thoughts on those:

    Lanyard

    The S2+ Red comes with a nice black wrist lanyard as standard, and you can order more of them as accessories in black, army green or neon green.

    The lanyard has a mini quick-release buckle with a thin cord for small lanyard holes. The thick cord of the lanyard proper is attached to the buckle with a lobster-claw clip, which can also attach directly to larger lanyard holes.

    I normally attach lobster-claw clips directly to my lights when possible, because I don't trust the knot that keeps the small cord secured to the buckle. If I had to use a small-cord attachment, I'd definitely superglue the knot inside the buckle so it couldn't unravel under any circumstances. It's good that Convoy give you both options.

    The lanyard proper isn't paracord as such, but it's more than up to the task. It also has a cord lock to keep it snug around the wrist, along with a gathering bead to keep the rest of the lanyard neatly together.

    Ever since I got my first Sunwayman light, which came with a really nice lanyard, I've been trying to find a source of more for my other lights and multitools. Sunwayman don't sell theirs separately, but the Convoy ones are very close. I plan to order a whole pile of them now

    I do have very slim wrists, though, so there's a chance that those of you with thicker wrists will find the lanyard to be a little short.

    Pocket Clip

    The S2+ Red does not include a pocket clip as standard, but you can get them separately. The clip is attached to the lanyard holes with two sets of tiny nuts and bolts.

    When I first saw that, I honestly thought the nuts and bolts would slip through the lanyard holes, they were that small! Fortunately, I tried it anyway and the clip does seem to stay put, so that was a relief.

    If forced to choose between a lanyard and a clip, I normally take the lanyard. That way, I can loop the light to my belt and make sure it won't get lost the way it would if a clip slid off my belt or pocket.

    I'm glad to say that although the Convoy clip does take up the lanyard holes, it has a cutout in it which I find perfectly serviceable as a lanyard attachment point, so I can still have both. This is a good thing, because the pocket clip isn't particularly tight - it's designed to slide on and off your clothes without damaging them.

    White Diffuser

    Convoy diffusers are all lantern-style. They look like baby traffic wands with the purpose of scattering light as nearly omnidirectionally as possible. They're available in white, yellow or red. The white ones I have work well, in their intended role as lanterns, although you do have to jam them on quite hard to make sure they stay put.

    Unfortunately, lantern diffusers produce a distracting glare at the edge of your vision if you try to hold the light in your hand as a diffuse source for walking. Convoy don't offer the flat forward-only diffusers that would work better for that task.

    However, I have discovered that Nitecore's 23mm NFD23 diffuser can be modified to fit the Convoy S2+ head (which is 24mm). If you run your finger round the inside of the black part of the NFD23, you'll feel six friction ribs running from front to back. Cut those out with a scalpel so the inside is more or less smooth, and the diffuser will fit securely on the S2+.

    Of course, it won't fit a 23mm light anymore, but I can live with that

    Nitecore also sell 23mm filters in red, green and blue. I don't own any of those, but I presume that this trick would work on them too.

    Update: I've now noticed that a Fenix AOD-S lantern-style diffuser fits rather neatly on my Convoy S2+, because it has stepwise securing ribs on the inner surface to fit more than one diameter of light. Nice if you want the option of swapping one diffuser between your 25.4mm Fenix and 24mm Convoy lights.

    By eyeball, I find that the Convoy and Fenix diffusers transmit "about the same" amount of light, but they have different light distributions. The Convoy one seems to spread the light around more evenly, with a relatively small amount of extra brightness in the forward direction. On the other hand, the Fenix one sends a bit more light in the forward direction, and a bit less to the sides.

    Taking a power cut as an example, if you hung an S2+ pointing downwards from the ceiling, the Convoy diffuser would be good for lighting up the whole room as evenly as possible. The Fenix diffuser would be good at making a brighter area to work on something directly beneath, with the rest of the room having less light, but still plenty to navigate by. The flat Nitecore diffuser would create a wider, somewhat brighter working area directly beneath, but at the cost of leaving the corners of the room with only a moonlight level of illumination.

    Red Diffuser

    The red diffuser has exactly the same shape and fit as the white one (the picture on the AliExpress page must be old). It really is a baby traffic wand and does its job just as you'd expect.

    One thing to be aware of is that it only transmits a fraction of the light that the white diffuser does. That's exactly what you'd expect, given that it only transmits red wavelengths, rather than the full spectrum of a white diffuser, but it still caught me by surprise until I realised why I was only getting less than a third of the light
    Last edited by Phlogiston; 11-04-2015 at 07:45 AM. Reason: extra information.
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    For those of you who like 18350 lights, there's a new arrival at Convoy. You can now buy 18350 battery tubes as an accessory for the Convoy S2+ Red and S2+ Blue. The only snag is that you have to buy them in lots of two, not singly, but they're cheap enough for that not to bother me.

    I haven't seen an 18350 turnkey package, like the S2+ Grey 18350 / 16340 version which is already available, but I imagine there's still a possibility for that to happen at a later date.

    Two things to be aware of, especially if you don't already own an S2+:

    • CR123A and LiFePO4 cells are unlikely to work well, because the Convoy drivers have a low-voltage warning which is configured for 3.6V - 3.8V Li-Ion cells. As such, the 2Hz warning flash kicks in at 3V ±0.1V, at which point a CR123A / LiFePO4 cell will still have plenty of charge left.

    • If your S2+ is configured with a higher-current driver, you'll need to make sure that your 18350 / 16340 is rated for that load. This is why the S2+ Grey 18350 / 16340 turnkey package is only offered with the 7135*3 or 7135*4 drivers.
    Last edited by Phlogiston; 10-16-2015 at 01:40 PM. Reason: specific voltages.
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    Flashaholic* D6859's Avatar
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    Quote Originally Posted by Phlogiston View Post
    One of of my lights has exactly the same configuration, and I liked it enough to order another (now in transit), so I'm hoping that you'll enjoy yours too
    Nice to know, thanks! I might order another one for a friend and my gf.

    Also thank you for the info about lanyard. I've been worried about loosing a light since I lost my TN12. I think I'll use mine tied around a belt loop and attach the S2+ to the mini buckle.

    Do you know if S2+ has low voltage indicator or protection? Or is it recommended to use only protected batteries in it? Edit: Yes it has.
    Last edited by D6859; 10-16-2015 at 02:46 PM. Reason: Didn't read whole thread.
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    Default Re: Convoy S2+ Red: Option Comparison Tables

    Quote Originally Posted by D6859 View Post
    Do you know if S2+ has low voltage indicator or protection? Or is it recommended to use only protected batteries in it? Edit: Yes it has.
    Just to be clear, I've never actually had a Convoy light down that low. I only know about the warning flash from the Convoy sales page on AliExpress, and I don't know what happens if you leave the light on anyway (for example, if you've forgotten about it and gone somewhere else).

    I should really stick a protected cell in one of my Convoy lights, run it right down and see what happens Been meaning to do that with my Fenix UC35, too...

    Quote Originally Posted by D6859 View Post
    Nice to know, thanks! I might order another one for a friend and my gf.

    Also thank you for the info about lanyard. I've been worried about loosing a light since I lost my TN12. I think I'll use mine tied around a belt loop and attach the S2+ to the mini buckle.
    No problem, I'm glad my impressions were useful to you I've lost and almost lost lights in the past, so I know how that feels.
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  16. #16
    Flashaholic* akhyar's Avatar
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Excellent post on the comparison table.
    I think I made the right decision of sticking to 7135*3 drivers configuration for my red and blue S2+ as I have 3 others single 18650 lights that can hit 1k lumens.
    I've just ordered a red and blue 18350 tubes direct from Simon as the 2 lights are mainly for my wife and she prefers the shorter dimension of the 18350 tubes

  17. #17

    Default Re: Convoy Lights: Option Comparison Tables and Images

    Contemplating to get some S2+ myself and the information you provided is awesome and very helpful to chose right.
    Thanks a lot Phlogiston!

  18. #18
    Flashaholic* D6859's Avatar
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    You can find a review of Convoy S2+ 18650 – XM-L2 T6-3B 7135*8 by Chicken Drumstick here.

    I ordered a grey version. It should have interesting looking green rubber button. Red version should have better button according to the review.
    The darkness here is different.

  19. #19
    Flashaholic* akhyar's Avatar
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Quote Originally Posted by D6859 View Post
    You can find a review of Convoy S2+ 18650 – XM-L2 T6-3B 7135*8 by Chicken Drumstick here.

    I ordered a grey version. It should have interesting looking green rubber button. Red version should have better button according to the review.
    The red and blue version are using the so called "piston" click.
    It feels nice to touch, and feels different than my other rubber clicky buttons.
    There's a green S2+ version in the pipeline as well.

  20. #20
    Flashaholic* D6859's Avatar
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Quote Originally Posted by akhyar View Post
    The red and blue version are using the so called "piston" click.
    It feels nice to touch, and feels different than my other rubber clicky buttons.
    There's a green S2+ version in the pipeline as well.
    Do you know if there's any other differences between the different colour models than the button type?
    The darkness here is different.

  21. #21
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    A new Convoy S2+ tidbit: apparently, it uses 4.5kHz PWM, which is a decently high frequency that most people won't notice. That's from a BLF post by ToyKeeper, who is a well-respected firmware programmer and presumably has first hand knowledge.

    Quote Originally Posted by akhyar View Post
    There's a green S2+ version in the pipeline as well.
    Cool, I hadn't heard about that yet. Where did you find out?

    Quote Originally Posted by D6859 View Post
    Do you know if there's any other differences between the different colour models than the button type?
    As far as I know, the only difference is the metal button versus the rubber switch boot. I wouldn't mind seeing the black and grey S2+ models offered with the metal button as well.

    Note that the metal button may not be as water-resistant as the rubber switch boot (BLF post by J-Dub74). The metal cap has to slide in a tube to operate the switch, which means that there's a sliding interface where water could get through, unless there's a rubber seal underneath. In contrast, a rubber boot simply deforms without ever allowing an entry route for water.

    I'm tempted to take one of my S2+ Red tailcaps apart now, to see if there is a rubber seal under the metal cap, but it's not going to happen until my spare gets here. Any takers in the meantime?

    Quote Originally Posted by akhyar View Post
    Excellent post on the comparison table.
    Quote Originally Posted by B0rt View Post
    Contemplating to get some S2+ myself and the information you provided is awesome and very helpful to chose right.
    Thanks a lot Phlogiston!
    Thank you both, and everyone who's expressed support for this thread
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  22. #22
    Flashaholic* akhyar's Avatar
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Quote Originally Posted by Phlogiston View Post
    A new Convoy S2+ tidbit: apparently, it uses 4.5kHz PWM, which is a decently high frequency that most people won't notice. That's from a BLF post by ToyKeeper, who is a well-respected firmware programmer and presumably has first hand knowledge.



    Cool, I hadn't heard about that yet. Where did you find
    The picture of the green S2+ is already posted at BLF

  23. #23
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Quote Originally Posted by akhyar View Post
    The picture of the green S2+ is already posted at BLF
    Thank you - my Google-Fu was failing me. The BLF search box found it, though:

    http://budgetlightforum.com/node/42401

    In the same thread, there's also a post saying that there'll be a UV S2+ as well, and it's going to be a proper 365nm LED to boot.

    WARNING: If you're interested in getting a UV light, you will need to take very careful safety measures (read this and check Google as well).
    Last edited by Phlogiston; 01-30-2016 at 10:21 AM. Reason: UV safety.
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    Flashaholic* D6859's Avatar
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Quote Originally Posted by Phlogiston View Post
    Note that the metal button may not be as water-resistant as the rubber switch boot (BLF post by J-Dub74). The metal cap has to slide in a tube to operate the switch, which means that there's a sliding interface where water could get through, unless there's a rubber seal underneath. In contrast, a rubber boot simply deforms without ever allowing an entry route for water.
    I thought so too.

    I got my S2+ today. Three instant notions: 1) No green rubber boot! 2) The lanyard has no buckles! 3) I don't like the blueish-grey colour. On the other hand, the light seem solid, the tint is great, it's smaller than TN12 and the output enough for most tasks. I'd say it's great for EDC! And when considering the price point... I think I have to order the red one too.
    The darkness here is different.

  25. #25
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Just noticed that the new Convoy S2+ UV (ultraviolet) light has appeared on Convoy's AliExpress store.

    As previously stated, it has a 365nm LED. I found a page on the Nichia website listing various UV LEDs, and I think (but can't be certain) that this is the datasheet for the one in the Convoy light:

    http://www.nichia.co.jp/specificatio...NCSU276A-E.pdf

    WARNING: if you buy one of these, you must take proper UV safety precautions. Among other things:

    • Keep away from children.
    • Avoid direct exposure to the UV light, including reflections. This applies both to your eyes and those of other people.
    • UV-blocking eye protection is mandatory for everyone present while a UV light emitter is in use.

    Failure to take suitable safety precautions when using UV light emitters can lead to eye problems such as cataracts, retinal damage and permanent blindness.

    UV light can also cause skin cancer. Be at least as cautious about exposing your skin to it as you would be with strong sunlight.

    Please check Google for more information on UV safety.
    Last edited by Phlogiston; 02-14-2016 at 07:47 PM. Reason: UV safety.
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Quote Originally Posted by Phlogiston View Post
    I should really stick a protected cell in one of my Convoy lights, run it right down and see what happens
    Finally got round to trying it with a protected NCR18650BE cell in my T4-7A (very warm white) 7135*4 S2+ Red.

    I was running it in medium mode when the low voltage warning flash started. On my sample, the flash is more like 1Hz than the rated 2Hz, but it's still a perfectly clear indication. I measured the cell voltage at 2.93V, so I'd estimate that the warning flash kicked in at about 2.9V, which matches the manufacturer's rating of 2.9V to 3.1V. I also noticed that the light stepped down from medium to low mode when it started flashing.

    I put the cell back in, and the light re-entered medium mode when I turned it back on. I immediately set it manually to low mode using the tail switch, and it ran for at least another 20 minutes before it started flashing again. At that point, the cell was hovering around 2.9V.

    I put the cell back in again, turned the light on and it immediately started flashing in low mode. I let it run for another hour, after which the cell was at 2.67V. The light was down to 5 or 10 lumens at that point, rather than the usual 20+ lumens, but still enough to find another light or carefully navigate your way out of trouble. The flashing would be annoying under those circumstances, but you could do it nonetheless.

    After a further hour, the light was still flashing at a moonlight level - useless to me, but I know many people here on CPF could still use it at that level in an emergency. The cell voltage was 2.56V at that stage.

    The light subsequently flashed for another 20 minutes, steadily dimming towards a firefly level, until the cell's protection circuit finally tripped out at what I presume to be 2.5V.

    In total, the light lasted for 2h 40m after the low voltage warning first started flashing.

    Conclusions:

    • The S2+ won't shut down prematurely and leave you in the dark. The warning flash at 2.9V will notify you well in advance that power is low, and the light will still be producing something like a firefly level of output even at 2.5V.

      Please note that this will vary wildly depending on the ambient conditions, the cell you use and even from one S2+ sample to the next. In particular, this test was conducted at room temperature.

      Low temperatures will severely reduce the cell's ability to keep the light going at low voltage. You might only get a few minutes under those circumstances.

    • If there's a risk that the light could be switched on for a long time by accident - in your backpack, for example - then I strongly recommend using a protected cell and / or locking the light out (unscrewing the tailcap by half a turn).

      Otherwise, the S2+ will drain your cell completely dry.

    P.S.

    I've also updated post 12 with thoughts on more accessories I've tried with my Convoy S2+ lights.

    Update: I've now seen the same light running at 2.4V, using a different cell whose protection circuit hadn't quite triggered yet. Even at that level, the light was still flashing very faintly.
    Last edited by Phlogiston; 02-09-2016 at 06:19 PM. Reason: another data point.
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  27. #27
    Flashaholic* Grijon's Avatar
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Another excellent post with great information; thank you, Phlogiston!

  28. #28
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Agreed. Learning how a Li-ion flashlight behaves in the face of over-discharge is mandatory for me.

    Frankly, I wish all Li-ion flashlights had low-voltage cutoff circuits that completely turned them off when their batteries got too low.

    Edit: Forgot to say that I started a thread about this!

    Over-discharge of Li-ion – A Request for Flashlight Reviewers
    Last edited by KeepingItLight; 12-02-2015 at 03:24 AM.
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    If there were 1 thing I could have different about Convoy lights (that is: sold as complete lights), it's drivers with a lower low, and a more modest medium setting as well.
    For example a 1-2% low (vs. 5 or 10%) and a ~15 to 20% medium (vs. 30 or 40%). That is especially true for higher-current drivers as with a %, the lower modes move up as well. A 1.0 or 1.4A driver with 1%-20%-100% modes (and no flashy modes!!) would be damn near perfect for me. And I think a whole lot of other people, too. Personally I have a strong preference for neutral or even warm white LEDs over cool white, but that's easy to do if host, driver, and LED boards are sold separately.

    Great to hear that red S2+ can be used with 18350's, too. Nice & short, and (compared with 16340) there's much better battery options in 18350 size.

    Quote Originally Posted by akhyar View Post
    There's a green S2+ version in the pipeline as well.
    Nice... may I suggest gold and/or purple as next options?

    Only got a single Convoy myself so far (S2, self-assembled from host + driver + LED board), but it's one of my most lights due to its combo of replacement cost (read: not being too scared to damage it or lend it to someone), built-to-taste, price/quality ratio and performance. Recommended this brand several times already to newbies on this forum.

  30. #30
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    Default Re: Convoy Lights: Option Comparison Tables and Images

    Quote Originally Posted by Grijon View Post
    Another excellent post with great information; thank you, Phlogiston!
    Quote Originally Posted by KeepingItLight View Post
    Agreed.
    Thank you

    Quote Originally Posted by KeepingItLight View Post
    Learning how a Li-ion flashlight behaves in the face of over-discharge is mandatory for me.

    Frankly, I wish all Li-ion flashlights had low-voltage cutoff circuits that completely turned them off when their batteries got too low.
    If a light had a built-in low voltage cutoff, I'd want it to be set to a very low level: 2.6V, for example, to allow a tolerance band above the 2.5V minimum that seems to have become a de-facto standard among new Li-Ion cells lately.

    That would give me the option of running a cell right down in an emergency, if I had no other choice. I find myself imagining a nightmare scenario where I'm changing over to my last backup light or spare cell, drop it and can't find it again, so I have to carry on with whatever a near-depleted cell can give me.

    I like the way the S2+ handles a low voltage condition by giving the user plenty of warning, in a way which is annoying and persistent, but doesn't render the light totally unusable. It's also compatible with protected cells, unlike some other lights, so you effectively get the choice of whether to add a low voltage cutoff or not.

    On a related note, I consider it a significant design defect when a light can't use protected cells. Even lumen blasters should be able to run on protected cells, if only in lower modes.

    Quote Originally Posted by RetroTechie View Post
    If there were 1 thing I could have different about Convoy lights (that is: sold as complete lights), it's drivers with a lower low, and a more modest medium setting as well.
    It occurs to me that the Convoy driver has two mode groups, one with 3 modes and one with 5. If I were in charge at Convoy, I'd do this:

    Group 1: Strobe, SOS, 1Hz flash.

    Group 2: 1%, 5%, 15%, 40%, 100%.

    The 1% mode would be virtually useless to me, but the light has mode memory, so I'd just leave it in 5% mode every time (as I do anyway) and it wouldn't be a problem.
    Last edited by Phlogiston; 12-02-2015 at 07:19 PM. Reason: improved clarity.
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