FonPeak 300Watt (Peak 600W) Pure Sine Wave Car Power Inverter DC 12V to AC 110V Charger Converter with 5V USB 100% True pure sine wave inverter soft start technology is gentle on computers and other sensitive electronic equipment, prevent your TV, radio or audio equipment from damaging Full power and high conversion efficiency300 watt continuous pure sine wave, full load efficiency is over 90.5% Intelligent temperature controlled cooling fanauto runs once the temperature is over 45, reduces energy consumption. Aluminum alloy shelleffectively dissipation heat to prevent the product from overheat and fire accidents. 1 Year Warranty and 100% Customer ServiesPerfect protection systems, include input low voltage, input over voltage, over temperature, overload, and short circuit. LED indicators for power and protections,Low battery voltage alarm