... &OEM square wave 150W car power inverter with usb 1. Specifications:Style:150W car power inverter with usb Item:PI-0102 ... Indicator Lamp:Work: Green LED Failure: Red LED and alarmLED Display: Voltage, Current, Power(optional)Material:AluminumColor:Red, blue, ... load).6.Safeguard: Short circuit, Under/over voltage protective, reverse protection, over load protection power, over temperature, main automatic ...