1.off grid solar power inverter 2.low unloading ... Red LED and alarmLED Display: Voltage, Current, Power(optional) Material:AluminumColor:Red, blue, silverOrder:Accept ... Dual-patent technology ( inverter low-standby control system and a inverter); small size (100*65*26mm ... voltage protective, reverse protection, over load protection power, over temperature, main automatic switching function (optional ...