Auto inverter, DC to AC Auto inverter,12V or 24V to 110V 240V ,70W-300W, with USB plug. Protection: Short circuit Overload Overheat Over-voltage Low-voltage Work Temperature: -10~40Celsius Certificate: CE ROHS Socket:Europe style Can charge your Mobile Charger, Laptop, DVD Player, Coffee Maker and Water Cooler less then 75W while driving your car How to use? Step 1: Insert the DC socket of the CAR INVERTER into the cigarette lighter socket on the dashboard of your car. Step 2: Check that the power indicator LED on the CAR INVERTER is glowing. Step 3: Insert the AC plug of your electrical appliance into the socket of the CAR INVERTER and you're ready to charge ahead!