Wide Application: The solar power generation system has various applications, such as car power converters, car adapters, mobile phone chargers, outdoor power supplies, power outages, etc. Green and Red Indicator Lights: When the inverter is working normally, the green LED lights up, but when it is in a protected state, the red LED lights up. At this time, you need to turn off the inverter, check which protection function is active, and Port Design: 4 USB ports can quickly charge most phones and tablets at the same time. 2 universal AC outlets and two cigarette lighter holes are suitable for laptops, TVs, players, RVs and more. Safe Charging Design: Built-in fuse protects your device from reverse polarity, overheating, undervoltage, overvoltage, short circuit, overload and overcharging. Package and Accessories: 1 x inverter + 1 x pair of red and black battery clamps + 1 x cigarette lighter + English inverter manual + 1 x solar controller + English controller manual + solar panel + DC