... power, and be widely used with those electric equipments which power consumption are less than 300W ... , game machine,computer,Fridges,Stereo,Electric drill, printers,energy-saving lamps, electric light, charge and various kinds ... 19.5±1V 3)Over load: shut off output 4)Over voltage shut down: 15.5V or 30. ... 5V 5)Over thermal: shut off output automatically 4.Environment part 1)Working temperature ...