power inverter 1.NC series 2.low price ,ce certificate, 3.10 years experience in inverter ... wide input voltage range : 90V----280V;2.four step AVR , three step to incease the voltage, one step to recrease the voltage;3.power ... able to drive inductive loads, such as air-conditoner, refrigerator, motor, elevator, computers, bulbs, fans........etc.8.with RS232, SNMP card ...