Meanwell HLG-240H-24B are high quality, high power LED drivers. Dimmable via 1-10V, PWM, Resistance. These LED driver are IP67 which means they can be used internally or externally, and are backed by a class leading warranty of 7Years replacment warranty.This driver can be used to power LED lighting systems that run on constant voltage either 24V DC (12V also avaible see HLG-240H-12B). With huge capacity up to 240Watts 24V model(196w 12V model).