Right 1-2 Lights for boat

lakeoffury

Newly Enlightened
Joined
Jul 6, 2024
Messages
3
Location
Chicago
Hey Everyone -

Longtime lurker and absorber of your incredible information. Have spent a while trying to figure out the right light to get for use on a sailboat sailing the great lakes. Right now I have a Sofirn IF22A, wurkkos fc11 & wk15. I am looking to have a better setup for night time on the boat for scanning shoreline, buoys, and potential man overboard scenarios. Initially I was leaning towards something with a SBT90.2 as they seem to have great throw with some spill that could be helpful. I then was thinking perhaps I go with one of those and a Q8+.

Budget would be less than $150 all in.

The ones that keep jumping out would be:
- Convoy L7
- Convoy L8
- Convoy 4x18A
- Noctigon K1
- Acebeam L19

Not married to a battery type. Also, I have read a number of boat threads on here and found some great info but also found myself realizing there is no perfect one light and that two lights might be better where I pick something with great throw but not too narrow and then something that has nice flood (Q8+). My hope is to never use it for a man overboard scenario but I would like to be prepared.

Took a stab at the survey below.
Thanks for all your thoughts in advance.

1) How would you prefer to purchase the light?
__X_This will be mail-order or Online (location doesn't matter).


2) Budget: An easy question, but you may change your mind after answering the rest! :)
__X__Up to $150

3) Format:
__X__I want a flashlight (hand held/self contained).

4) Size:
__X__MEDIUM - Holster/belt ring carry. (>7 inches)


5) Emitter/Light source:
__X__LED (known for efficiency, longevity, and compactness)

6) Manufacturer:

_X___I want to buy a light from a large/traditional manufacturer that is ready to go out of the box.
__X__I would like a light from a specialty manufacturer (Possibly limited run/Custom).

7) What power source do you want to use?
__X__I intend to use Rechargeable cells (NiMH or NiCD) based on the usual AAA/AA/C/D sized cells common to most stores.
__X__I intend to use Rechargeable cells based on less common formats (18500 or 18650 Li-Ion, RCR123, et-al).

7a) If you have selected a rechargeable option
__X__I don't care


8) How much genuine out the front (OTF) light do you want/need? Sometimes you can have too much light (trying to read up close up with a 100 lumen light is not a happy experience).
_X___I want to illuminate an entire field, the neighbor's front yard several houses down, impress my friends and neighbors, etc. (300-700 lumens).
__X__I want search and rescue type illumination (800+ lumens).
__X__SPECIAL NOTE: Burst/Turbo mode Category - There are several lights that will run at a super bright maximum for a very limited period (usually 5-10 minutes) and then will "step-down" to a lower level for thermal control. Check here if this is acceptable.


9) Flood vs Throw: Flood covers an area, Throw reaches out to a distance.
__X__Wide Throw: I want a beam with a noticeable hot-center for distance throw and a significant amount of "side-spill". Good for rough trail hiking, search and rescue, and general distance work.

9a) Distance: How far away will you typically need to see with this light (check all that apply)
__X__50-150 yards/meters (I live in a very rural area/farm with wide open spaces)
__X__150+ yards (I am searching from a helicopter)

10) Runtime: Not over-inflated manufacturer runtime claims, but usable brightness measured from first activation to 50% with new batteries (Measured on maximum continuous output).

__X__90-120 minutes (Runtime is moderately important, but still not critical)

11) Durability/Usage: Generally the old phrase "you get what you pay for" is very accurate for flashlights.

__X__Very Important (Camping, Backpacking, Car Glove-box).
__X__Critical (Police, Fire, Search & Rescue, Caving, Survival).


12) Switch Size, Type, and location (choose all that apply):
__X__I don't know.


13) User Interface (UI) and mode selection. Select all that apply.
__X__I don't know.


14)Material/Finish/Coating
__X__Anodized Aluminum – either type II or III (Hard Anodized) (Aluminum, specifically HA, is the most common material/finish for today's higher end flashlights).


15) Water resistance
____None needed
____IPX4 (Splash resistant)
_X___IPX7 (Waterproof to 1 meter/30min)
__X__IPX8 (Submersible to greater than 1 meter for 4 hours)

16) Storage conditions
__X__In house (temperature/climate controlled environment)
__X__Emergency kit (long standby periods)
 
Hey Everyone -

Longtime lurker and absorber of your incredible information. Have spent a while trying to figure out the right light to get for use on a sailboat sailing the great lakes. Right now I have a Sofirn IF22A, wurkkos fc11 & wk15. I am looking to have a better setup for night time on the boat for scanning shoreline, buoys, and potential man overboard scenarios. Initially I was leaning towards something with a SBT90.2 as they seem to have great throw with some spill that could be helpful. I then was thinking perhaps I go with one of those and a Q8+.

Budget would be less than $150 all in.

The ones that keep jumping out would be:
- Convoy L7
- Convoy L8
- Convoy 4x18A
- Noctigon K1
- Acebeam L19

Welcome to CPF! That's a great list to start out. A few things come to mind for me:

1. The Convoy L7, L8, and 4x18A are all multi-cell lights. The L7 and L8 use less common sizes, so unless capacity and run time are absolutely critical, I would recommend going for the more common 18650 and 21700 battery sizes. Multi-cell lights also require more maintenance in keeping the batteries married together (can't swap singles to other lights) and balanced in charge to prevent fires caused by lithium ion batteries.

2. The Noctigon K1 and Acebeam L19 are single cell batteries, so less to worry about for battery maintenance. Also a common size, so batteries are easily purchased, can be charged with most external chargers, and easily swapped out.

3. I feel there is an advantage to the K1 as you have many more choices in emitters (I'm no expert, but I know the SBT90.2 eats batteries and gives off massive amounts of heat); there's also on-board USB-C charging. The (possible) disadvantage is the K1 uses the more complex UI Anduril. Some might find it overwhelming, but it could be tailored to exactly what you want.
 
Thanks so much for the response Scalpel!

For the price of the K1 with the SBT90.2 ($139) I could get the new Convoy M21J and a Q8 Pro right now. Any thoughts on that combo?

I would say runtime would be critical if we had to actually use the light for a search and rescue situation.
 
(I'm no expert, but I know the SBT90.2 eats batteries and gives off massive amounts of heat)
SBT90.2 nice for short runs but as said it will eat batteries and get hot in quick.

I've used lights on boats allot. Wide beams tend to blind the driver and occupants as the floody light bounces of the seats etc. unless you take that into account... I use the Malkoff Hound Dog allot although only 800 lumens it puts the light where you want it and doesn't scatter it everywhere.

The Convoy M21J is cheap enough to try out with the sbt90.2. A SFT40 emitter is powerful with throw and doesn't get near as hot and better on battery life as an alternative.

The Super Hound dog would be better for sustained 1700 lumens and it pushes the light away from you as not to blind the occupants but is expensive.


Tons of other options out there too!
 
SBT90.2 nice for short runs but as said it will eat batteries and get hot in quick.

I've used lights on boats allot. Wide beams tend to blind the driver and occupants as the floody light bounces of the seats etc. unless you take that into account... I use the Malkoff Hound Dog allot although only 800 lumens it puts the light where you want it and doesn't scatter it everywhere.

The Convoy M21J is cheap enough to try out with the sbt90.2. A SFT40 emitter is powerful with throw and doesn't get near as hot and better on battery life as an alternative.

The Super Hound dog would be better for sustained 1700 lumens and it pushes the light away from you as not to blind the occupants but is expensive.


Tons of other options out there too!
Great feedback - thank you Lips! I am open to other suggestions.

Your comment about the SFT40 vs the SBT90.2 is interesting valuable. SFT40 also seems to have some initial flood to it right?

The Noctigon K1 with SFT40 is more in the price range then (if I was still trying to get something throwy and something floody).
 
Thanks so much for the response Scalpel!

For the price of the K1 with the SBT90.2 ($139) I could get the new Convoy M21J and a Q8 Pro right now. Any thoughts on that combo?

I would say runtime would be critical if we had to actually use the light for a search and rescue situation.
I haven't personally used either of those lights, but some things to consider:

The M21J is so new there might not be much real-world testing and reviews yet. According to this Reddit post the driver is from the L7 and temperature regulation for SBT 90.2 on turbo might not drop the brightness enough to prevent overheating. It's also a multi-cell light so recharging and keeping spare batteries paired together correctly during long sear and rescue missions might get complicated.

The Q8 Pro looks to be a great flood light, but again, it's a multi-cell light (four cells). While it has onboard charging that can manage the cells for you, it'll mean the light will be out of commission while charging. The powerbank function may or may not be useful to you.

Most multi-cell lights are in series, meaning multiple cells do not increase runtime (that would require the cells to be in parallel); rather, they increase voltage to drive the LEDs. What I said earlier about runtime was a larger 26650 cell versus a smaller 18650 cell; a larger single cell will last longer than a smaller single cell.
 
Great feedback - thank you Lips! I am open to other suggestions.

Your comment about the SFT40 vs the SBT90.2 is interesting valuable. SFT40 also seems to have some initial flood to it right?

The Noctigon K1 with SFT40 is more in the price range then (if I was still trying to get something throwy and something floody).


That's a big head on the Noctigon K1 and will make a light throw farther. The SFT40 (5000K color temp just came out and I like) (It's a dedomed LED so it kinda throwy with some flood) with make it a tighter beam at 560,000 candela. 560,000 Candela is very throwy...

Understanding candela and the size of the LED die and the size of the head of the flashlight all come into play.

Look at the XHP70.3 HI LED it will be more floody with less candela but more lumens than the SFT40. It is a bigger LED die so it will use more power than SFT40.

You have to look at the Lumens, Candela (basic throw) and power consumption. I'ts allot to digest at first!

K1
Noctigon K1.jpg
 
The recommendations above are worthy of your serious consideration. They are however numerous: to help narrow the list of recommendations, it might help if you could specify the distance from which you typicall search for buoys and shoreline features, and whether you sail only in fair weather conditions, or whether you regularly find yourself sailing in stormy conditions or other conditions of limited visibility. In this regard, a search distance of a half mile will dictate a wholly different class of light than those that will be more than sufficient at 100 meters, and a light capable of penetrating fog will need to have a beam pattern different from a light used only in fair weather.

(I'm discounting "man overboard" scenarios for purposes of this post, because most of the CG approved flotation vests come with reflective materials sewn in, and reflect light from substantially beyond the posted distance limits of most lights.)
 
If you want to scan much or deal with man overboard situations, you need some flood to cover more territory as well. How about the Imalent MS03.
 
I realize it doesn't fit your criteria, but for all of $15 shipped, I use a vintage Optronics Night Blaster for my boat, a floating 12v corded sealed beam spot light. Sealed beam incans don't win the lumens contest, but for throwing a beam a looong ways under foggy conditions on the water, I wouldn't want anything else.
 
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