Road Trip, Camping, And Charging With The 300W Car Power Inverter Dc 12V To 110V Specification: Output power: 300 (W) Dimensions: 4.92 x 3.1 x 1.8 inches AC output:110V*2USB: 5V/2.4A+3A Simple installation. 1. Firstly, link the inverter with the positive and negative terminals of the battery, twist the terminals tightly. 2. Connect the device. 3. Turn on the inverter power, make sure the inverter switch is off before connecting. Note: The inverter voltage must be the same as the battery voltage, the inverter voltage is DC12V, then your battery voltage must also be 12V corresponding, otherwise the inverter will not work or damaged. If you need, please contact customer service first. ?Safety Door?: Has a safety door for multiple protection. The AC socket has a built-in safety gate to protect children from accidental electric shocks that they always suffer from accidental electrocution. Safe charging design provides protection that Smart chip + built-in fuse double protection mechanism. Once the product itself detects a fault, the inverter will automatically switch off the current output and illuminate a red light to alert the user, avoiding the hassle of fuse replacement. ?Fast Charging?: Dual AC power sockets for quickly powering smaller devices such as laptops and tablets or any other household appliance, and 2 smart USB ports for charging USB-powered devices. It automatically detects your devices to provide optimal charging speed and is a good choice as a must-have car accessory or for camping, outdoor needs or on a driving tour. ?Multi-Protection?: Featuring a rubber power cord with improved heat resistance and no cracking at high temperatures. The built-in fuse protects your device and the comprehensive multi-protection safety system includes overcharge protection, short-circuit protection, temperature control, under-voltage charging and over-voltage and overload protection. It helps to protect your charging device and prolong its use. ?Strong power supply?: This car inverter provides 300 watts of continuous DC to AC power, converting 12 volts DC to 110 volts AC with 2 AC outlets and 2 USB fast charging ports (3A+2.4A). 110V AC outlet for charging large devices such as laptops and tablets, and 2 USB charging ports for powering USB compatible devices. This inverter is perfect for your mobile phones, tablets, computers, MP3 players and other devices. ?Widely Use?: Let your appliances in the outdoors also practical up, the field can also eat delicious rice, wild camping can always be prepared, cooking, night market stalls easy power supply, power outages when the tablet can still be charged to play, home power outages can still be lighting, summer power outages can also be blowing fans, the company power outages also work as usual, very convenient.