... W7 Pure Sine Wave SoInverter combined inverter&Charger fully protection 400W-6000W Power Star W71000W,2000W,3000W,4000W,5000W,6000W ... 2> Industrial equipments: solar energy system, wind power, metal halid lamp, high voltage sodium lamp, etc.3> Office equipments, computer, printer, display apparatus ... if above 60 degree, the buzzer will keep on alarm for 1 min then shut off. If above 70 degree, inverter ...