1. 500w power range,12v / 24v / 48vdc optional,use copper transformer to increase efficiency; 2.110v-230v wide input voltage range ,50/60HZ input frequency; 3.low frequency and pure sine wave which can run inductive loads . main use for home and office: computer, lights, fan,tv, fridge,air-condition .etc; 4. built in 4 steps supper battery charger 30-75A to save charge time.Charger (bulk, absorption, float); 5. with 200cm battery cable; 6. Support generator 1hp/2hp/3hp; 7. Support solar system; 8. Remote control / RS232 , monitor inverter working by computer; 9. CE/ SONCAP certificate; 10. Charge current is adjustable 25%,50%,75%.100%; 11.Hybird solar system , Solar advantage, battery advantage; Solar system parts in seperate packages Solar system kit package in one Pallet Transportation by Ship, Air, Truck, Train. Door to door service. Pre-Shipment inspection service. VIP customer of the Maersk, Cosco, PIL , DHL, Fedex, UPS shipping company, supply the fastest and cheapest shipping service.