1.off grid solar power inverter 2.low unloading current&high efficiency 3.pefect protection function&small size ... Failure: Red LED and alarmLED Display: Voltage, Current, Power(optional) Material:AluminumColor:Red, blue, silverOrder:Accept small orderUsage ... Under/over voltage protective, reverse protection, over load protection power, over temperature, main automatic switching function (optional).7. ...