Input: 110V/220V AC; Safety features: automatic overload cut-off, over-voltage cut-off, automatic thermal cut-off, short circuit protection. Voltage Consistency: There is no voltage fluctuation during power up, transmit, receive, shut down. There is no fan inside the case and it runs quietly. The metal case has many holes to make heat dissipation more efficient. Perfect for LED Strips, 3D Printers, Ham Radio Transceivers, CCTV Cameras, Car Subwoofer Amplifiers, Audio Amplifiers, Wireless Routers, ADSL Cats, HUB, Audio/Video Power Supplies. Indoor use only High price-effective, reliability with industry standards Built-in over voltage, over current, and short circuit protection Ambient Humidity: 0~95% Non-Condensation Built-in over voltage, over current, and short circuit protection PWM design, make the stability and high efficiency of power supply. Anti-jamming, passed EMC test, wave less than 20MV. Constant voltage output, assume stable power supply for LED lightings to reach long lifetime Typical Applications power supply Security surveillance industry Other industrial applications type:12V 3A 36W Colour:Photo Color Material:Metal Package Contents: 1 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 the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.