... compatible,no environmental protect,no maintenance,3.GMT power inverter (with charger UPS )specification details: ModelCA2000SpecificationINPUT DC12V, OUTPUT AC220VINPUTInput voltage12VWorking voltage ... piece/CartonApplicationComputers, Lights, TV, Fans, Refrigerators, Washing Machines, Rice cookers, Travel, Camping, Medical and emergency4. Accessories 5.Application portable inverter with charger