Bestek 400W Car Power Inverter Dc 12V To Ac 110V Car Plug T-Type Sine Wave Product Details BESTEK 400W Car Inverter: Its output waveform is delivers a smoothly for sensitive electronics provided by the electric utility, Perfects for off-grid system,Lower THD,Less wear, Strong inductive Loads Capability.It has little interference with radios, communication and precision equipment. This is an inverter converting DC from your car battery to AC for whatever you want to use within its Watt range.Plug this into 12v cigarette lighter outlet provides continuous DC to AC power with 2 AC outlets operates any 110v device and 2 USB ports which detects your device automatically to deliver its fastest charge speed up to 2.4 amps per port/4.2 amps max. The Wave Inverter has well placed thermal protection sensors,The aluminum alloy casing with a few ripples,Unique vents and also a built-in FAN which comes ON under NO any loads or when the Inverter becomes Hot Once Powerred. Isolated Voltage Protects Perfectly for your device from Over-voltage,Under-voltage,Overheat,Overload, Reverse Polarity,Short circuit.it will not drain your battery dry because of an under-voltage protection point.The Inverter does automatically sense overload condition and shuts down AC power when the load exceeds 450W. You will need to power Off/On to reset the overload condition indicated by the Flashing Red.The ON-OFF switch only works for the 3-prong plugs. The 12V plug is spring-loaded and fits snugly into the socket. You don't get 400 watts from the 12V cigarette lighter plug and need to purchase an additional alligator clip to connect to the car battery. If you are plugging it into your car's cigarette lighter, you should keep the wattage below 150 as this is the setting for most car fuses. What you get: 1xBESTEK 400W Car Power Inverter, 1x User Manual. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.