Aluminum alloy material possess good strength and corrosion resistance.This product come with stable structure, excellent performance and long service life100% brand new switching power supply transformer, High efficiency, high reliability and low costThere is built-in cooling fan, which makes heat dissipation more efficient.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.The product have excellent insulation performance and high dielectric strengthspecificationModel: S-400-48Input: AC 110/220V+15%Output voltage: DC 48VOutput current: maximum 8.3AOutput power: maximum 400WWorking temperature: -10 Celsius to 60 CelsiusEnvironmental humidity: 10%-95%Colour:SilverMaterial:Aluminum + electronic componentsSize:215 x 113 x 50mmPackage Contents:1 * Switching Power Supply (power cord is not included)Only the above package content, other products are not included.Note: Light shooting 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.