General description This DC 12V – 24V LED Digital USB Voltmeter with Dual USB Power Socket Panel is designed for use in vehicles such as cars, boats, RVs, ATVs, caravans, and motorcycles. It features a multifunctional design with a blue LED indicator light, making it perfect for travel use. Technical specifications USB output: 5V, up to 2.1A Charging capacity: 2.1A for iPad, 1A for iPhone/iPod Other information Short circuit and overheat protection Waterproof with USB protective caps