[POTEK 5000WATT POWER INVERTER]:Provides 5000 watts continuous power, 10000 watts surge power to charge your multiple electronic devices. [MULTI-PURPOSE CHARGING] :With 2A*2 usb port and 4 AC outlets,ideal for charging cell phones, laptops,water dispensers,air compressor,refrigerator,coffer maker,electric motor saw,etc [MULTI-PROTECTION]: Provides protection against overload,overheat,low voltage,high voltage and short circuit. [INTELLIGENT COOLING FAN]: Smart cooling fan makes it silent when temperature range of heatsink is below 104℉ and can also save battery’s electricity for longer utility time