Buck regulating User Interface (UI) Driver board for SSC P7 or CREE MC-E emitter. This UI has 3 modes (LowHighMedium) with memory so your last setting will remain after the light is powered off. It is designed for a single Lithium Ion battery and direct drives in High mode. Medium and low are pulse width modulated and operate silently.

My experience with these buck drivers in a p7 flashlight is typically about 450 lumen constant. These drivers push the P7 emitter very hard, good heatsinking is required and it is likely that the thermal protection will still limit High mode run time depending on heat sinking, I get about 20-30 minutes continous operation (indoors with no moving ventilation air) before the lights I've installed these in tend to overheat and kicks the modes down.

DETAILS:

Input: 5.5 - 12vdc, 2pc Lithium Ion (protected 18650 recommended)
Output levels: Low:5%  Medium:35% High100%
PWM: High frequency for quiet operation
PCB Diameter: 17mm
PCB Height: 8mm
Output leads: pre-attached
Positive (+) output lead color: Brown
Negative (-) output lead color: Blue