If you're not satisfied with this USB outlet, please don't hesitate to reach out to us via email. We'll provide you with a full refund or a replacement right away! Additionally, if the product isn't working after installation, please check the following: 1. Is the switch on? 2. Are the positive and negative poles reversed? 3. Is the fuse in the wiring blown? 4. Is the power supply low on electricity?. Easy Installation?Qidoe 12V USB Outlet is easy to install. Simply connect the "+" to the positive pole and the "-" to the negative pole. Package includes: 1 x Brand new QC 3.0 USB charger socket, 1 x 23.6 Inches Wire, 1 x 10A fuse, 60-Day money-back guarantee, 2-year Replacement and Lifetime Support. Top-notch Quality and Safe Design?Our product is made of eco-friendly and tough PA66 nylon material, which can endure extremes of both high and low temperatures. It also has anti-flame properties, ensuring your safety. Moreover, it offers protection against overloading, over-current, and short circuits, keeping your devices secure during charging. Versatile Compatibility?This 12V USB power outlet is compatible with a wide range of vehicles, including boats, motorcycles, ATVs, RVs, and more. It can charge various devices such as iPhones, iPads, AirPods, Samsung, Google, Moto, LG, ZTE, HTC, BLU, tablets, power banks, sports watches, switches, dashcams, and more. This product is perfect for drivers who need to keep their devices charged while on the go. Touch Power Switch?Our 12V USB outlet comes with a touch-sensitive switch that controls two USB ports and emits a gentle blue LED light. It prevents power loss, conserves energy, and extends the life of both the product and any connected devices. The blue LED light also makes it effortless to locate in the dark. Quick Charge 3.0 USB Outlets?Qidoe Dual QC 3.0 Car Charger Socket packs 36W total power and charges two compatible devices at 4x speed. It takes just 35 minutes to get your devices from 0% to 80%. And even non-quick charge devices get the fastest possible charge. Plus, the built-in Smart IC chip ensures a stable current output without any fluctuations.