Input: 110V/220V AC; Safety Features: Automatic overload cut-off, overvoltage cut-off, automatic thermal cut-off, short circuit protection. Voltage Consistency: There is no voltage fluctuation during power-on, transmission, reception, shutdown. There is no fan inside the case and it works quietly. The metal case has many holes to make heat dissipation more efficient. Perfect for LED strip lights, 3D printers, ham radio transceivers, CCTV cameras, car subwoofer amplifiers, audio amplifiers, wireless routers, ADSL, HUB, audio/video power supplies. Indoor use only! Color: As shown Material: Metal Package Contents: 2 x 12V 15A Power Supply Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.