1.The product should be broad, products with high energy efficiency, , low power consumption, easy to use security, energy saving and durable. it is wild, night camp, the night market traders, driving home emergency power of a good helper. 2. Can be used as a pure sine wave, Modified sine wave, single silicon machine, the first stage booster inverter circuit tetrasilicic machine. DIY enthusiasts for electronic production, maintenance substitution, control cabinet manufacturers supporting products and so on. 3. You can use electrical appliances: 0.1-500W , non-inductive household appliances,small electric cookers, (Note: Support for all "electronic products"") such as "energy-saving / Soldering / switching power supply / satellite TV receivers / lamp / LED lamp / LED energy saving / fluorescent / DVD machine / VCD machine / EVD machine /LCD TV / color TV / flat screen TV / laptop / computer / various computer monitors /charger for all electronic products / and so on. Power: 500W Input: DC 12V Output: AC 220V Static load current: about 0.35A Output frequency waveforms: about 20KHZ, high frequency square wave Protection: no protection Colour: Material:PCB Package Contents: 1 x 500w Inverter Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.