Mainly used for CCTV camera, LED flexible strip, LED decorative lighting, building lighting, stage lighting, LED display and home appliances. This power supply is built in fan on/off control circuit, fan can automatically works according to working temperature. Voltage is selected by Switch Connected Point Use the proper voltage, avoid damaging the machine. Product Name : Switch Power Supply Input : AC 110-220V Output : DC 24V, 2A Material : Alloy, Electronic Parts Size : 11 x 7.8 x 3.7cm/ 4.3 inch x 3 inch x 1.4 inch(L x W x T) Main Color : Silver Tone Net Weight : 422g Package Content : 2 x Switch Power Supply Only the above package content, other products are not included. 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 +/- 1-3cm.