My mods. Romisen, Ultrafire

[Alpinoid]

Ultrafire MCU-C7s
Emitter: Cree MC-E K-bin
Driver: NANJG-10 (linear regulator), 1400 mA
Battery: 1 x Lion 16340
Modes: 1
Runtime: 30 min
Glow in the dark O-ring & tailcap




Romisen RC-G2
Emitter: Cree XR-E Q2 (warm white, 3500k)
Driver: AK-47 (linear regulator), 1000 mA, 200 mA
Battery: 1 x Lion 14500
Modes: 2 (100%, 20%)
Runtime: 48 min in high mode
with low battery level indication




Romisen RC-C6
Emitter: Cree XR-E Q5
Driver: AK-47 (linear regulator), 1000 mA, 200 mA
Battery: 1 x Lion 16340
Modes: 2 (100%, 20%)
Runtime: 45 min in high mode
low battery level indication & lens with variable focus




Romisen RC-A4
Emitter: Cree MC-E K-bin
Driver: 5 modes driver with power mosfet t70n03
Battery: 1 x Lion 16340
Modes: 5 (~3,5A at high for first minutes, ~1A at mid)
Runtime: aprox. 15 min in high, 35-40 in mid


... and some more pics

 

[chitoz28]

Nice mods, can you show more pictures on the RC-A4. I have one that I need to mod, and where did you get the driver?

 

[parnell]

I like the mods. I have the same request as chitoz28 above.

 

[allburger]

You've inspired me. I just ordered a romisen A4. That is a good looking light.

I'm not sure how i might mod it. I may just leave it as is for a while.

Thanks!

 

[frankiej]

Nice mods, can you show more pictures on the RC-A4. I have one that I need to mod, and where did you get the driver?

I bet it's this one: http://kaidomain.com/ProductDetails.aspx?ProductId=1801

 

[Alpinoid]

Nice mods, can you show more pictures on the RC-A4. I have one that I need to mod, and where did you get the driver?

I shall make some more pictures soon. I get driver from MTE sf-15 flashlight.

 

[kosPap]

what is that AK47 driver? and at what diameter? any place to buy some?

 

[Alpinoid]

what is that AK47 driver? and at what diameter? any place to buy some?

7135 based linear regulator. 17mm.

http://www.kaidomain.com/ProductDetails.aspx?ProductId=1802

 

[kosPap]

aha! so the AK47 is a nickname isn't it?

 

[Alpinoid]

aha! so the AK47 is a nickname isn't it?

"AK 47" printed on back side of the board

 

[chitoz28]

I bet it's this one: http://kaidomain.com/ProductDetails.aspx?ProductId=1801

I ordered this one http://kaidomain.com/ProductDetails.aspx?ProductId=1677 for it and it's too big, so not sure what Alpinoid used.

 

[keith p]

I shall make some more pictures soon. I get driver from MTE sf-15 flashlight.

More info on the driver please! I don't want to have to cannibalize an MTE for the driver only :( I really like the A4.

Is it a 17mm or smaller board?

Sweet mods BTW :twothumbs

 

[1anrm]

Alpinoid do you notice any PWM in low mode with the AK47 driver?
thanks