The Fulham WHCC-1M1UNV210P-75L is a 0-10V cimmable constant current LED driver. This LED power supply is factory programmable from 350mA to 2100mA. The WHCC-1M1UNV210P-75L is default set to 2100mA. It has a voltage range of 28 - 56Vdc. Current must be specified when ordering.