Dell 4.0*1.7mm19.5v 4.62a laptop adapter 90w power charger

Input: 110V/220V AC; Output: DC 12V 30A max. Output voltage is adjustable 15%. 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.
It comes with built-in cooling fan and temperature detector. Cooling fan will not run until the inner temperature reaches 113°F (45℃), which makes heat dissipation more efficient.
Great for LED Strips, 3D Printer, ham radio transceiver, CCTV cameras, audio amplifier, wireless router, ADSL Cats, HUB, audio/ video power supply. Indoor use only!