Looking for a non ROP bulb solution for 2x18650s.

[Lunal_Tic]

I picked up a couple of FM's deep 2" Mag reflectors and have not had good success with them when used with ROP bulbs. I've had great success with WA1331/WA1166 and that reflector though. In any event I'm looking to use 2x AW 18650s in a 2C Mag and would like a readily available bi-pin bulb solution in hopes that it will work better than the ROP bulbs. Any suggestions?

The problem with the ROPs is that they don't focus down anywhere near as tight as the WA bulbs with the FM reflector. I've even tried shimming the ROP bulbs with washers but it doesn't make any discernable difference.

TIA,
-LT

 

[Buckfever]

I haven't tried it but the Carley 1499 was very popular a while back.

 

[litho123]

The pin spacing is too narrow for the 1499 bulb to work.

There are a couple of choices for 2x18650 applications in a Kiu socket.


The WA 1274 - runs pretty much at spec.

The WA 1111 - nice, bright, and white. At over 3.3+a draw, will your 18650's fire up on one click?

The Carley 1057 - nice hotspot, slightly more yellow CT to the beam than the 1111. At 2.0+a draw, you'll get the most runtime with this one.

I don't mention the philips 5761 because it is too demanding for your 18650 cells.

 

[BSBG]

The Reflectalite G24 is a nice white potted bulb on par with the ROP low, but it is even larger than the ROP bulbs and will not fit in the FM Deep Reflector.

So that is no help at all

The C1057 recommeded by Litho123 is a nice bulb for the 18650, decent runtime and output.

 

[Flash Harry]

I also like the WA1111. I'm pretty sure it will light up easily with the AW18650 with 2200mah. I have a couple running 4x14670 2S2P giving the same mah.

 

[Lunal_Tic]

Over here, Popular bulbs current draw; SF & other brands, incl hotwires, there are a number of 2 cell options but I could have sworn that the draw from the WA1274 or WA1111 was too much for protected Li-ions. The CL1499 or CL1057 look good but neither appear to be readily available.

3 CR123/2 Li-Ion
Super Bulbs
SuperStinger6V-1.70A(2 Li-Ions >850mAh)
MagCharger 6V- 1.80A(2 Li-Ions >900mAh)
CL 1499 7.20V - 1.84A (2 Li-Ions >950mAh/3 x 123 primary)
Ultra Stinger6V -1.90A(2 Li-Ions >950mAh)
PE3854 6-7.2V- 1.90A (2 Li-Ions >1000mAh-ROP low)
CL 1057 6.0 V - 2.00A (2 Li-Ions >1000mAh)
WA 1274 7.2V - 2.77A (2 Li-Ions >1400mAh/7 NiMH, FM2.5C)
FM Axial 7.2 V - 3.30A (2x3 Li-Ions 1400mAh/7NiMH, FM2.5D)
OS 64250 6.0V- 3.33A (2 Li-Ions >1700mAh/6x2.3Ah NiMH)
WA 1111 6.0V - 3.35A (2 Li-Ions >1700mAh/6x2.3Ah NiMH)
WA 1160 5.0V - 3.45A (5x3.5Ah ump NiMH, Magcharger upgrade)
PE3854 6-7.2V- 4.3/4.15A (2 Li-Ions >2100mAh/6 NiMH-ROP high, KevinL)

edit: This would be going into a FM PR to bi-pin adapter.

-LT

 

[Buckfever]

Litho, wasn't it you that had some kind of a solution so that the Carley 1499 could be used in an ROP application?

Maybe my memory is failing me.

 

[jimjones3630]

5761 pulls about 5.5A which would trip AW's protection circuit in 18650's
Non protected 18650's do very well has been my experience.

An overview:

5761 7.2Vbat.~854 torch lumens (1331 bulb lumens)1185 10.8Vbat.~772torch lumens (1194 bulb lumens)
5761 History And Modified Lights:

http://www.candlepowerforums.com/vb/showthread.php?t=127925fs BobG does beam shots against 1185
http://www.candlepowerforums.com/vb/showthread.php?t=145224 Old history and the challenge to develop the model
http://www.candlepowerforums.com/vb/showthread.php?t=113100&page=2 From post #100 onward the 1185 comparison and extensive 5761 discussion to include this model
http://www.candlepowerforums.com/vb/showthread.php?t=170972 NTC applications and sources

The problem arose with protection circuits even in C Li cells tripping with the 5761 5.5A draw.

In response to that several solutions arose. Northern Lights developed one solution the NTC.

Mount the NTC in the tail cap. Isolate it from the heat of the head as temperature state is critical to the resitance state. Use my tail cap modification:

http://candlepowerforums.com/vb/showthread.php?t=143345

follow the two links.
In this tail cap connecting device divide the circuit to upper and lower and put the NTC on the outside between the battery and ground. Cover the NTC and tubing with shrink wrap. You can keep a spare bulb in the center.
From post #133 on discusses some more about NTCs:
http://candlepowerforums.com/vb/show...73#post2119573
so does this link:
http://www.candlepowerforums.com/vb/...d.php?t=170972

 

[racer7]

If I had the 2C and it wasn't "permanently" altered in some way for 18650s, I'd be doing this with 2 of AWs C's and an 1111. I've assembled a fair number of these and they work fine with a decently white, well distributed beam, especially if used with a MOP from FM.
I've had some issues with 18650s on 1111 so have pretty much eliminated 18650s from my collection of stuff - I'd rather fill the tube with the most energy dense thing commonly available than tote a big tube with a skinny cell, especially for lights this big.
(My pocket EDCs are a Draco and a modded P1D-CE, the C stuff is for home and car locations.)
Racer7

 

[Lunal_Tic]

Use my tail cap modification:
http://www.candlepowerforums.com/vb/...d.php?t=162767

Thanks for all the links but this one returns a 404 error.

racer7, the 2C isn't permanently modded to be used with 18650s but I do have a lot of them with charging solutions and adding another size cell and charger isn't really on my todo list right now. Also as mentioned above I'm trying to get the best beam with a FM deep 2" reflector. I already run a few lights with MOPs so I'm looking for something different.

700L w/ MOP

Mini 700L w/ FM deep 2"

top to bottom 2D Mag, 700L, Mini 700L

Also does anyone have a source on Carley lamps? http://www.light-edge.com/ returns an error when I try to check them.

-LT

 

[Buckfever]

http://www.cpfmarketplace.com/mp/showthread.php?t=168089

 

[jimjones3630]

link fixed to Northern Lights tailcap mod. 5761 is a great bulb within it's limit.

nice looking lights.

 

[Lunal_Tic]

Buckfever, thanks for the link. I'll see what he's got in stock.

nice looking lights.

Thanks. The mini 700L is one of my all time favorite hotwire Mag coversions. It's a great size and I really like the performance.

The WA1111 looks like it might be a little tough to run on 2 protected 18650s. Does anyone have a WA1274 running on two protected cells?

-LT

 

[DM51]

The WA1111 looks like it might be a little tough to run on 2 protected 18650s.

The WA 1111 will run very well on 2 of AW's protected 18650 Li-Ions. In fact even AW protected 18500s will fire it up without having to double click. As the others have said above, the WA 1111 would be a good choice for what you want.

 

[ExZeRoEx]

Hello, I'm still new to this stuff, but I was wondering if there was any kind of bulb that I can just drop in there like how the ROP doesn't need a special socket? I'm looking for something with better output than the ROP HI though, I already have one of those, I just have a 2C sitting around doing nothing right now.

 

[Lunal_Tic]

DM51, so you have a WA1111 on 2 of AW's 18650s and it doesn't need the multi tap to start? What kind of runtime are you getting? Any trouble running it for a full burn?

-LT

 

[DM51]

DM51, so you have a WA1111 on 2 of AW's 18650s and it doesn't need the multi tap to start? What kind of runtime are you getting? Any trouble running it for a full burn?

-LT

Yes, it works fine. I haven't measured the run-time, but it would probably be ~35-40 mins.

I also run this bulb with AW 18500s, although the discharge rate with these cells is >2C so I only use it for shortish bursts. Again, I haven't measured the total run-time for this either, but it would probably be ~20-25 mins.

Both 18650s and 18500s fire up the WA 1111 without needing to double-tap. Some people use unprotected cells for hotwires to avoid having to double-tap, but these are AW's protected cells and they work perfectly.

 

[Lunal_Tic]

Thanks DM51. Maybe I'll make up 2 of these then one higher output for shorter runs and another for longer runs. The 1111 sounds like it's better/safer at shorter runs. I'm looking to use this for 30 minutes or more at a time, a walking light.

-LT

 

[DM51]

2x18650s will run a WA 1111 for 30 mins no problem, at ~1.5C. It's a really nice white light, brighter than an MN21.

You can get bi-pin bulbs from CPFer Litho123 in his sales thread on CPFMP.

 

[Lunal_Tic]

I also run this bulb with AW 18500s, although the discharge rate with these cells is >2C so I only use it for shortish bursts.

Sorry I must have misunderstood this quote. I thought you were saying that it was better for short runs. Staying up too late again I guess.

-LT