?Wide Application?Convenient used for 12-24V vehicles, such as car, motorcycle boat marine rv golf cart Vans, etc. ?Multiple Protection?Certified by CE & ROHS with Over-load, Over-current and Short Circuit Protection to ensure charging safety. With IP66 WATERPROOF GRADE, allows this USB charger socket does a better job on the boat. ?Easy to Install?Connect according to the wiring diagram, and then connect it to a 12-24v device to use. *** If you are installing for the first time, please read the installation instructions carefully. If you have any questions, please feel free to contact us. We will give you a satisfactory answer as soon as possible. ?Highe Power Cigarette Lighter Socket? Total power up to 200W. Fits perfectly with compatible devices such as dashcam, GPS, vacuum cleaner, air purifier, etc. Enough for everyday use. ?Well-designed Button Switch?The button switch which more stable on control than touch button. The switch controls the LED digital display to avoid the battery drained due to the constant light after the engine starts, and effectively enhance its lifespan. ?PD 3.0 Fast Charge?The PD port can quickly charge Apple 12 and other devices, which makes up for the shortcomings that QC3.0 cannot fast charge Apple series phones, and satisfies the fast charge function of most mobile phones. ?QC 3.0 Fast Charge?The max output of the QC3.0 port can reach 18W, which is 4 times the normal charging speed. It is backward compatible with QC2.0 and QC1.0, and provides the fastest possible charging for all non-fast charging devices.