SHNITPWR 12V Power Supply 20A 240W AC DC Adapter, 110V / 240V AC to DC 12 Volt 20 Amp Switching Power Converter Transformer LED Driver for LED Light Strip 3D Printer CCTV Security System LCD Monitor

Universal switching mode power supply. Input: AC 110V / 220V, 50 / 60Hz ; Output: DC 12V, Max 20A, 240W. The default output voltage is 12V DC, but it can be regulated by 15%, from 10.2V to 13.8V. Three sets of output channels available. It can supply with all amperage less than 20A. ---such as 1A, 2.5A, 10A, 12A, 18A, 20A. For example, if your device draws 15A, then 15A will be supplied. If draws more than 20A, only 20A will be supplied and power supply will be damaged soon. NEVER OVERLOAD! Certified by FCC CE ROHS. We focus on producing high quality power adapters. No noise, low temperature operation, no spontaneous combustion, no explosion, no fire hazard, stable output. Automatic overload cut-off, over voltage cut-off, automatic thermal cut-off, short circuit protection. It is perfect for 5050 3528 12V LED Strip Light, Wireless Router, ADSL Cats, HUB, Security Cameras, Audio/ Video Power Supply, 3D Printer, LED Driver, CCTV Security System, LCD Monitor, Webcam Router and other 12V devices less than 240W. There is no built-in fan, silent running. Metal case with many holes makes heat dissipation more efficient. It comes without any power cord. 30 days money back guarantee, 18 months exchange. If there is any issue, please feel free to contact us. We will happily accept the return and give you refund.   Input AC 110V/220V，50/60Hz Output Voltage DC 12V ( regulated by 15% , from 10.2V to 13.8V ) Output Current Max 20A Output Wattage Max 240W Professional advice （1）The max use should be no more than 80% of the full loads. Otherwise, the service life of the power supply will be greatly shortened. （2）We recommend you to use this 12V 20A 240W power supply to power devices less than 192W. Material Metal, Electronic Parts Safety Compliance FCC / CE/ RoHS Symbol mark L: AC Live Wire ; N: AC Neutral wire ; +V:DC 12V+ ; COM: DC 12V- ; +VADJ: Adjust output voltage by 15% Kindly note （1） 110V/220V must be selected by switch before using to avoid damaging. （2） It comes without installation instruction, power cord, on/off switch and screws. Professional installation of licensed electrician is highly recommended. （3）High voltage inside, NEVER remove the cover. （4）Not waterproof, indoor use only. （5）If there is any issue with the power supply, Please feel free to give us your feedback. We will solve the problem for you within 12 hours.   Three sets of output channels The power supply has three output ports. Each port can output 20A at max. But the total power shouldn't exceed 240W. AC voltage setting The power select switch is located inside the case. Please use screw driver to reach in and change the switch to 220V for UK/EU, to 110V for USA/CA. Efficient heat dissipation Honeycomb housing can greatly improve the efficiency of heat dissipation, ensure the safe operation of the power supply and extend the service life. DC voltage adjustment You can use the knob to fine-tune the output voltage between 15% of the standard voltage, from 10.2V to 13.8V, to make the device work better.