ITEM NAME:AC 110/220V to DC 12V 30A 350W LED Voltage Transformer UK E9H3 AC 110/220V to DC 12V 30A 350W LED Voltage Transformer UK E9H3 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. Shortage protection, overload protection(105%~200%), over voltage protection(115%~135%). Widely used as the power adapter for Led strip, LED display, billboard, industrial equipment, etc. Material: Metal case / aluminum base Input voltage: AC 110V/220V (47~63Hz) Input surge: Cold 50A@120V AC Output voltage: DC 12V Output voltage adjustment range: 12V+/-10% Output current: 30A Output power: 350W Working temperature: -10~50 degree Celsius Storage temperature: -20~85 degree Celsius Working humidity: 20%~90%RH Non-Condensation Storage humidity: 20%~95%RH Item size: 21.5*11.5*5cm / 8.5*4.5*2in package contents:1 x Voltage Transformer Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.