1、Wide Voltage Design: Input voltage 10‑30V, wide voltage, widely applicable to automobile, RV, yacht, truck, bus, boat and other models. 2、USB C Car Charger: QC3.0 and PD18W two in one vehicle charging port, can charge two devices at the same time, improving charging efficiency. 3、Digital Voltmeter: Colorful backlight voltmeter, which can display battery voltage visually, with a measuring range of 5‑30VDC. Low voltage buzzer prompt function. 4、Dust Cover: Adopts a convex design with a fully enclosed upper cover. The waterproof and dustproof performance is better. 5、Electronic Protection: The installation harness is equipped with a fuse holder to prevent circuit overload and protect your equipment.