Upgrade DC 12V 800W Power Supply-This switching mode power supply(smps) converts the AC 110V/220V to DC 12V. Input: AC 110/220V 50 / 60Hz; Output: Default DC 12V,Adjustable range: ±10%,form 10.8V-13.2V, which greatly expand its application range; Maximum 66.6A 800watt power,the actual current is depended on the load; Three sets of output channels available,it can power more devices. Net weight: 2.86 lbs; Dimension: 24.5*12.5*6.5CM(9.64 X 4.92 X 2.56 inch) AC to DC Voltage Converter Transformer-There is a voltage switch located on the side of the convetert,our factory setting for US customers is 110V. If you want to use AC 220V,please don't forget to adjust the switch to the 230V(220V) side before use to avoid damaging.AC 110V/220V is just according to your local voltage. Good Heat Dissipation-This low voltage power supply transformer is made of metal material with many holes,which makes heat dissipation more effictive and ensures stability. Built-in cooling fan to protec