Specifications: Material: ABS Input voltage: DC 12(V)-24(V) Output voltage: DC 5 (V) Output current: 3.1A[2.1A+ 1A], 4.8A[2.4A+2.4A] Working temperature: 55 (°C) Output interface: Dual USB Ports LED I more→ndicator Light Color: Blue Shell Color: Black Applicable charging range: Mobile phone, tablet, USB device Connection: Red line to Positive+, Blackline to Negative- Applicable for 12V/24V Car, Boat, Marine, RVs, Bus, Truck, motorcycles, etc. Features: 1. Dual USB output, fast charging. 2. With blue LED indicator light, easy to find it at night. 3. Installation with two screws, is easy and quick. 4. Made of fireproof ABS material, durable and anti-fall. 5. Come with a dust cap to prevent