Dc to ac modified sine wave power inverter 3. Usb:5v, 500ma 4. Modified sine wave output 5. High reliability and high efficiency 6. High load ability 7. Temperature and load controlled cooling fan 8. Protection: overload, short circuit, reverse polarity, Over/under input voltage, over temperature 9. Led indicator light indicate inverter, fault mode 10. Ce and rohs approved Inner box and carton