This witch power supply convert AC to DC, widely used in the power adapter, Led lights strip, LED display, billboard, industrial equipment, etc. Features: Switch power supply, convert AC 110V/220V to DC 12V. The voltage will chang from 110V to 220V if the voltage is more than 110V. 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! Specifications: Material: Metal case Input voltage: AC110/220V 15% Input Frequency: 50/60Hz Input surge: Cold start 25A@115V AC 50A@230V AC Output voltage: DC 12V Output voltage adjustment range: 10% Output current: 10A Current Range: 010A Output power: 120W Working temperature: -40~65 degree Celsius Storage Temperature: -20C - +60C Humidity: 20%~90%RH Non-Condensation Item size: 13.0 * 9.8 * 4.1cm / 5.1 * 3.9 * 1.6in Item weight: 325g / 0.72lb Package size: 14.2 * 10.7 * 4.6cm / 5.6 * 4.2 * 1.8in Package weight: 351g / 0.77lb Package List: 1 * Voltage Transformer