Input: 110V-220V 50/60Hz; Output: 12V DC up to 16.5 Amps Max; The output voltage can be regulated by ±10%, from 11.5V to 12.5V, Works with device that draws less than 16.5A, such as DC12V1A~16.5A. The default input voltage is 220V, 110V/220V must be selected by switch before using to avoid damaging. Please replace the switch with the voltage appropriate for your project. High-quality raw materials, porous metal shell, good heat dissipation performance, small size, strong performance stability, only support indoor use. Make sure your device match the 12V voltage and wattage less than 198W. Please don't run it overload.The max use should be no more than 80% of the full loads,otherwise, It's cause the power supply to overheat,the service life of the power supply will be greatly shortened.We recommend you to use this 12V16.5A 198W power supply to power devices less than 158.4W. Safety features: Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, sho