• Multifunctional panel with 4 on/off toggle switches, dual 5V/2.1A USB charging port, and digital voltmeter. • Made of high-quality ABS material, resistant to corrosion and scratches, with IP65 protection rating. • Suitable for 12V-24V vehicles, including cars, RVs, trailers, buses, boats, and yachts. • Includes short circuit and overload protection, with digital display for real-time voltage monitoring. • Easy to install, with wiring instructions included: red wire to positive pole and black wire to negative pole. • Specifications: Max. Power of 240W, input voltage of 12V/24V, output voltage of 5V, output current of 4.2A. • Operating temperature range: -25°C to 60°C.