LED driver board for flashlights with three light levels (High/Low/Off) and memory. This is a very efficient board using three 7135 LED Power driver current regulating IC's driving upto 1 amp to the emitter.  The board has low voltage cut off and remembers which mode it was in each time it is powered on. This board will also buck regulate the input voltage up to 6v in to maintain 1A to the emitter and has a very low profile. We use this board with a single Rechargeable Lithium-Ion battery to drive CREE, and SSC emitters.

These LED driver boards have a microprocessor onboard which is programmed at the factory to control the modes. This board has been programmed with two selectable output levels (High/Low).

Changing modes: Modes (or output levels) are switched from High or Low by momentarily interrupting the power with in 2 seconds of powering on the light. Immediately after turning the light on, tap the power switch to quickly interrupt the power, this will signal the driver board to change output level. Modes are remembered if the power is left off for more than two seconds. If the light has been powered on for more than two seconds, modes can be changed by either turning off the light first or by double tapping the power switch.

Features:

• Regulated output levels: (High: 1mA/Low: 75mA) measured at 3.8v input
• No flash or strobe modes
• Accepts 2.9 - 6 volts input (operates best over 3.5v)
• Buck regulates to 1A when input is over 4 volts
• Reverse input Diode protection
• Diameter: 17mm
• Thickness of board: 1.2mm
• Total thickness: 3mm
• Gold Plated for low resistance
• Low voltage cut-off at 2.6V with 0.08mA

Notes:

It is very important to have good electrically conductive paths for the driver board to avoid flicker and poor performance. Ensure your pill (A.K.A. sandwich, module....) has a solid path from the negative input of the board to the body of the light; ensure that the threads of the flashlight body also provide a good conducting path. Ground problems are a common issue and a poor installation will result in poor performance!

As a DIY part, driver boards are used in many configurations, whether correct or not. These drivers are offered for customization, modification and experimentation, due to their high susceptibility to damage we do not warranty driver boards or any damage cuased by improper application.

The board comes with leads which are not pre-attached, if you would like them pre-attached please select this option below.