The BYGD Pure Sine 400 Watt Power Inverter is a reliable and efficient device designed to convert DC power from your vehicle into AC power for use with various electronics and appliances. With a power output of 400 watts, this inverter is suitable for powering a range of devices, from small gadgets to larger equipment. The pure sine output ensures stable and clean power supply, making it ideal for sensitive electronics. Whether you're looking to power your GPS system, entertainment systems, or other devices while on the road, this power inverter is a practical and dependable choice. This power inverter is ( USED ) but still works as good as new as i did use it for about 3 days then put in storage in a dry place i was using it to run my tv and laptop. This bid is for the invertor only no box or paper work included. If you have any questions please ask.