Product Details 

• Input: 110V/220V AC; Output: DC 12V 20A max. Output voltage is adjustable 10%. Three sets of output Channel.
• Safety features: Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection.
• Voltage consistency: There is no voltage fluctuations to speak of at power on, during transmit, receive, or at power off.
• There is no fan inside the case, silent running. Metal case with many holes makes heat dissipation more efficient.
• Great for LED Strips, 3D Printer, ham radio transceiver, CCTV cameras ，car subwoofer amp, audio amplifier, wireless router, ADSL Cats, HUB, audio/ video power supply. Indoor use only!