Features: Conventional chargers. Suitable for all common USB devices. No need to drill big holes + dustproof: PC case has effective scratch resistance and this product also design has dustproof cap, this cap effectively protects the charger from sudden water splashes and dustproof. The machine can be installed on a flat surface, no need to cut a big hole, only a small hole to put the wire in, easy to install within 20 minutes. It is widely suitable for most 12V/24V vehicles, cars, motorcycles, boats, RVs. Charge all Android and iOS devices. The Car Charger Adapter charges your mobile device at the maximum charging speed that your device supports. Specification: Input: DC 12V-24V Output: 5V 4.8a Maximum Output Power: 24W Installation: Surface Mount Wiring Method: Black Wire is the Negative Pole and the Red Wire is the Positive Pole Material: ABS Color: Black R