18W-24W 280mAmp DC 50V-91V Waterproof Constant Current LED Transformer~3290 Compact Constant current 18W-24W 280mAmp DC 50V-91V LED power supply / driver / transformer The constant current LED Transformer/Driver is used to power DC voltage LED ceiling lights. 100% Brand new and high quality LED driver transformer suitable for MR16 / MR11 /G4 and other Power: 18W-24W Input Voltage: AC 110V/230V Output Voltage: DC 50V-91V(Constant) 18W-24W 280mAmp DC 50V-91V Waterproof Constant Current LED Power Supply / Driver / Transformer This is a Smart switch power supply for converting AC 110V/220V to DC volts with a steady constant current output These transformers output current is constant (it is 280mA for this transformer) and its DC output Volt varies according to its output power.