Title: AC - DC 12V 33A 400W Voltage Transformer Switch Power Supply for LED Strip Light AC - DC 12V 33A 400W LED Power Supply Driver Strip light Switching indoor AC - DC 12V 33A 400W Universal Regulated Switching Power Supply PSU Universal Regulated Switching Power Supply ChargerAC - DC 12V 33A 400W Features: Switch power supply, convert AC 110V/240V to DC 12V . Dual input voltage: AC 110V/240V. There is a switch, choose the proper voltage before use. Steady and precise output voltage. Shortage 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 / aluminum base Input voltage: AC 110V / 220V (47¡«63Hz) by switch Input surge: Cold start 25A@115V AC 50A@230V AC Output voltage: DC 12V Output voltage adjustment range: ¡À10% Output current: 33A Output power: 400W Working temperature: -40~65 degree Celsius Humidity: 20%~90%RH Non-Condensation Certification: CE (EMC, LVD) Item size: 21.5 * 11.5 * 5cm / 8.5 * 5.5 * 2in Item weight: 742g / 1.64lb Package size: 22 * 12 * 5.5cm / 8.7 * 5.7 * 2.2in Package weight: 787g / 1.74lb Package List: 1 * Voltage Transformer