... decoder,Printer,Scanner, Air Conditioner, Computer, Test Equipment, Fridge&Freezer, Lighting , Equipment Etc.. 3.TECHNICAL DATA:Phase : Single PhaseEfficiency : >97%Input Voltage Range ... : Over Voltage Protection,Overload Protection,High Temperature Protection (options)Operating Temperature: -5~+40Storage Temperature: -10~+50Compliant Standards: CE single phase ac voltage stabilizer