... copper transformer5. Support inductive load6. Automatic three-stage batteryCharger (bulk, absorption, float)7 ... .100%(optional)13. Suitable for solar system, motor, water pump ,Wind turbine air conditioner, etc ... domestic appliance like TV, refrogerator ,fan,air conditioner.cooker,mirco-wave oven ... Current25 Amps in maximumEfficiency95%OutputVoltage120V or 230V AC ±5%Wave formPure Sine wave Frequency50 ...