I purchased this a few years ago and used it once during the Obon holiday this year. There are almost no scratches (please check the photos). It works perfectly. Thank you. 3-way inverter with 400W output, USB port, and cooling fan. - Model: 3-way inverter 400W - Output: 400W - Input Voltage: AC100V - USB Port: Yes - Power Switch: ON/OFF switch - Cooling Fan: Yes - Accessories: Cigarette lighter socket, clip cable, instruction manual Thank you for viewing.