KKmoon Dimmable LED Driver Switch Power Supply AC 110V/220V to DC 12V 16.7A 200W Voltage Transformer for Led Strip Light Switch power supply, convert AC 110V/220V to DC 12V . Dual input voltage: AC 110V/220V. There is a switch, choose the proper voltage before use. Steady and precise output voltage. Short circuit protection, overload protection(105%?150%), over voltage protection(115%?135%). Widely used as the power adapter for Led strip, LED display, billboard, industrial equipment, etc. IN-DOOR USE ONLY!