DROK 12V Power Supply, AC 110V 220V to DC 0-12V 0-40A 480W Buck Converter, Volt Amp Adjustable Adapter Regulated 5V 9V 12Volt Switching Voltage LED Transformer Charger for Computer CCTV Lab

Volt Amp Adjustment Input Voltage can be 110V or 220V. Wide adjustable output
Voltage range: DC 0-12V. This supply is suitable for 2V 3V 5V 6V 9V 12V devices. The voltage precision is 0.1V. NoteThe maximum current is 40A. But the ouput current can be adjusted by the potentiometer. No matter how many voltage is adjusted, the max current should not be higher than 40A. It can be used to device of 5A 10A 12A 24A 36V 40A. Make sure to use the devices which is below 40A. ^^ Hareware This Buck Converter is equipped with LED screen, heat sink and cooling fan. The LED screen can clearly display the output voltage and output current. Heat sink and cooling fan can control the temperature in a safe range. During the running power is high, the cooling fan will automatically activate with little noise. ^^ Easy Operation This supply is no need to install, after connecting wire, it can be used to adjust output, which is convenient. The potentiometer is inset into the supply. Only to rotate the potentiometer can adjust output parameter. ^^ Protection Over Load Protection, Over Voltage Protection, Short Circuit Protection, which can protect your device from damage.

Note: the default input voltage is 220V, before using, please switching the input voltage to 110V/220V according to your city voltage. ^^ Wide Application This power supply has variable application. It can be used as a 2V 3V 5V 9V 12V power supply for RV, Car, Labtop, Computer, Lab, CCTV, etc. All of our item has 1 year long time warranty guarantee.