My mods. Romisen, Ultrafire

Alpinoid

Newly Enlightened
Joined
Aug 14, 2009
Messages
4


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


 
Last edited:

chitoz28

Newly Enlightened
Joined
Apr 22, 2008
Messages
81
Location
Reedley, Ca
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?
 

allburger

Enlightened
Joined
Jan 7, 2008
Messages
564
Location
Mid Michigan
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!
 

keith p

Newly Enlightened
Joined
Aug 30, 2009
Messages
97
Location
Long Island NY
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
 
Last edited:

1anrm

Enlightened
Joined
Sep 22, 2008
Messages
201
Alpinoid do you notice any PWM in low mode with the AK47 driver?
thanks
 
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