Great for LED Strips, 3D Printer, ham radio transceiver, CCTV cameras, audio amplifier, wireless router, heater, HUB, air compressor power supply. Indoor use only. 110V/220V AC; Output: DC 12V, maximum 50A, output voltage adjustable by 15%. Three sets of output channels.(110V/220V must be by switch before using to avoid damaging) Built-in cooling fan and temperature detector. When the operating temperature is reached, the cooling fan automatically runs to maintain good performance of the device. All-aluminum metal shell, efficient entry into the air outlet. Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection. Before wiring and adjusting the voltage, do not power on the machine, and do not allow the machine to operate at a current exceeding the rated current! The operating current should be less than 90% of the rated current., Manufacturer: Littimoon