Surefire L2 with Cree MC-E

[GarageBoy]

No machining needed like the KL4?

 

[mudman cj]

Bypassing what circuit? The driver is in the tailcap. I thought I was supposed to wire it 2S2P?

Oh, yes. Sorry, I was thinking about the KL4 again.

I don'tknow if you have another L2 or an L4 to compare side by side with it. I had the opportunity today to compare my 5A MC-E KL4 side by side with a stock KL4. The center of the beam was no brighter than stock, but the 'hotspot' (if you can call it that) was larger and there was much more in the spill. I estimate from data sheets that it puts out about 230 lumens at most, and ceiling bounce tests suggest to me that this is about right. I doubt you damaged the LED this time, so perhaps your expectations were too high. It should be more of a wall of light than it was, and as you mentioned, the tint is quite an improvement.

 

[LLCoolBeans]

No machining needed like the KL4?

Sort of. You'll need to make a riser and drill new holes in the heat sink. No machining of the reflector/head was necessary.

 

[GarageBoy]

Why is it necessary on the KL4?

 

[Illum]

Keeping in mind that the L4 driver is located in the KL4 while the L2 has the drivers built in to the body. The heatsink is probably shaped differently compared to that of the L2.

 

[LLCoolBeans]

Energie,

I bought the exact same 14670 battery. It does work, however I have to wonder why the 14670? Why not a 17670 or 18650?

Thanks

 

[Illum]

Energie,

I bought the exact same 14670 battery. It does work, however I have to wonder why the 14670? Why not a 17670 or 18650?

Thanks

18650 absolutely will not fit in a E series body, the L2 is about the same diameter as a E series. 17670 will fit if the body is bored out some using sandpaper, otherwise the protected version will not fit. 14670 would be the next size in line for lithium secondaries:ohgeez:

 

[LLCoolBeans]

18650 absolutely will not fit in a E series body, the L2 is about the same diameter as a E series. 17670 will fit if the body is bored out some using sandpaper, otherwise the protected version will not fit. 14670 would be the next size in line for lithium secondaries:ohgeez:

I figured 18650 would not fit, but I thought 17670 would. I guess I could have bored out the tube.

I bought one of the multi-size ShoShine chargers. Nowhere on the package does or literature does it mention 14670, however my 14670 does fit and does charge and does not get hot while doing so. Is this safe? Packaging does list 14430 and 14250 among many other sizes, but not 14670. Did they just run out of room, is ShoShine just not aware of 14670 or should I not be using this charger for 14670 at all?

 

[Illum]

all the lithium secondaries act the same way...they are depleted at 3.7V and full at 4.2V. The only difference is capacity. As long as the charger ends the charge sequence at 4.2V [preferably 4.1V for unprotected] your not going to have an issue.

 

[Bullzeyebill]

18650 absolutely will not fit in a E series body, the L2 is about the same diameter as a E series. 17670 will fit if the body is bored out some using sandpaper, otherwise the protected version will not fit. 14670 would be the next size in line for lithium secondaries:ohgeez:

17650's will fit, and I run them ever so often in my E series bodies. Got to monitor the voltage once in a while. Not sure if they will fit in the L2 body, which I understand has a smaller ID.

Bill

 

[Illum]

does AW make protected 17650s? how much is their capacity? around 1300mah or less?

 

[Bullzeyebill]

does AW make protected 17650s? how much is their capacity? around 1300mah or less?

Go to Light Hound and see AW's cells. 17670's are available-protected. About 1600mAh's. You know this don't you? You have been around for quite awhile. Need to do more reading/research here on CPF. :thumbsup:

Bill

 

[savumaki]

I have an L2 I was going to sell, however this mod seems to be something I could handle and it would certainly improve its output.
Anything further from LLCoolBeans on your mod or further input from anyone?

Karl

 

[Bullzeyebill]

deleted, posted in error

 

[fsk141]

Energie: I see in the pictures that you have two head's for the L2. Did you purchase another L2 light, or were you able to get just the head assembly somewhere?

Also would you suggest any other cree led's, or would you stick with the 2S2P?

I'm planning on getting 14670 protected batteries for my L2, and think a cree upgrade would be stupendous...

Thanks ahead of time, Jonny

 

[ROK]

Also would you suggest any other cree led's, or would you stick with the 2S2P?

I have modded several KL4's, L2's & U2's with MC-E. Stock circuit of L2 is made for LuxV. So 2S2P of MC-E is adequate to it.
Also you can use stock heatsink with copper shim, about 1.27mm thick.

 

[pistolsnipe]

would anyone be able to make me a shim for this project? i don't have any copper/silver stock laying around. let me know a price if you can.