Features: Switch power supply, convert 100V～240V to DC 12V. Wide input voltage range, 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, , industrial equipment, etc. IN-DOOR USE ONLY! Specifications: Material: Metal case / aluminum base Input voltage: AC 100V～240V (50～60Hz) Input surge: Cold start Less than 40A@230V AC Output voltage: DC 12V Output voltage adjustment range: +3%, -2% Output current: 3A Output power: 36W Working temperature: -40~65 degree Celsius Humidity: 20%~90%RH Non-Condensation Item size: 8.5 x 5.8 x 3.8cm / 3.3 x 2.3 x 1.5in Item weight: 125g / 4.4oz Package Contents: 20 x Voltage Transformer Only the above package content, other products are not included. Note: Light reflection 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 +/- 1-3cm.