Feature:1.Step down DC24Vto 12V for bus.2.Steady and precise output voltage.3.Over temperature protection, overload protection, over voltage protection.4.The heat outlet and the alumium casing are better.5.Working efficiency is over 95%.Specification:Shell material: Aluminium AlloyInput voltage: DC 24~30VOutput voltage: DC12VOutput current: 10ARated power: 120WColor: SilverItem size: Approx 10 x 6.5 x 4(cm)Application:Perfect for in-car use, also applies to walkie-talkies, LED, radio and so on.Can connect with car CD, VCD, DVD, monitor,mobilephone, ect.Package Included:1 X Car Electric Convertor