300/600 Watt Pure Sine Wave Power Inverter Pure sine-wave output, can be used with different domestic appliance: light, TV, computer, fan, medical equipment etc. Ideal for car travel, camping, boat trip, and solar panel / wind turbine system High transfer efficiency, fast start, 5 protected functions to ensure safety and reliability Universal power outlet fits plugs for all regions, USB outlet for mobile devices Heat actiaved fan to save energy, low noise, maintenance free