Low Frequency Pure Sine Wave Inverter EP3000 Pro Series (1-6KW) EP3000 Pro series is very economical pure sine wave inverter , AC charger inbuilt , from 35A to 70A ; Solar /AC priority is configurable, When setting solar priority , solar will charge batteries as first priority , and AC can also charge batteries when solar charge current too lower , in this way system charge is optimazed best . With pure copper transformer , it enables inverter to operate with all kinds of home appliances . Features: LCD display , easy to read how inverter operates on LCD screen Compatible to generator 5-levels DIP switch , offering customized performance 9-levels battery selector , Enable to charge Li-thium , Gel , lead-acid battery DC(Solar)/AC prority optional 4 levels charge current adjustable With RS232 communication port With BTS & GTS , optimazing battery performance & start generator automatically Power saver Switch , Enable to minimize standby consumption