Features: Switch power supply, convert 100V~240V to DC 12V. Wide input voltage range, constant and precise output voltage. Short circuit protection, overload protection (105%~150%), over voltage protection (115%~135%). Widely used as power adapter for LED strip, LED display, billboard, industrial equipment, etc. IN-DOOR USE ONLY! 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 Operating Temperature: -40 ~ 65 Degrees Celsius Humidity: 20% ~ 90% RH Non-Condensing Item Size: 8.5 x 5.8 x 3.8cm / 3.3 x 2.3 x 0.9in 1.5 inch Item Weight: 125g / 4.4oz Package List: 4 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 a little different from the real thing. The measurement allowed error is +/- 1-3 cm.