DIY FourHole Panel Base with Dual USB Socket, Voltmeter, 12V Outlet, and Toggle Switch Enhance your vehicle's power and monitoring options with this compact, performance fourhole panel. Designed for durability and convenience, it combines multiple essential functions into one easytoinstall unit. Key Features and Benefits: Allinone design featuring a Dual USB socket, digital voltmeter display, 12V power outlet, and toggle switch for versatile power management. Dual USB output: DC 5V / 4.2A, ideal for fast charging smartphones, tablets, GPS devices, and other electronics. 12V power outlet provides a reliable connection for car accessories, portable refrigerators, air pumps, or other 12V equipment. Voltmeter display range 024V allows you to monitor your vehicle's battery voltage in real time, helping prevent unexpected battery failure. Compact size and efficient layout save dashboard or panel space while maintaining easy accessibility. Simple installation process suitable for DIY projects; can be mounted in cars, trucks, RVs, ATVs, boats, and other 12V24V applications. Sturdy construction ensures longlasting performance in a range of environments. Additional Details: The switch hole can be fitted with a cigarette lighter socket, though it is not suitable for lighting cigarettes. The toggle switch allows you to control power to the connected ports when not in use, reducing energy drain. Practical Applications: 1. Install in an RV dashboard to provide convenient charging and battery monitoring during travel. 2. Use on a boat to power marine electronics while keeping track of battery voltage for safety. 3. Add to an ATV or offroad vehicle for powering accessories and keeping devices charged during outdoor adventures. This versatile panel streamlines multiple power functions into one durable, spacesaving solution, making it an ideal upgrade for any 12V or 24V system.