This product is a low cost, high efficiency, high brightness multiple LED driver based on the integrated off-line switching regulator VIPer22A-E. The board is an off-line, constant current power supply capable of driving from 2 to 8 LEDs in series operating from universal mains input. The output current can be selected for compatibility with 1 W, 3 W and 5 W LEDs with a total output power of up to 10 W.