4 in 1 Charger Outlet Socket Panel QC 30 Dua 12V USB Power Outlet Car Voltmeter Cigarette Lighter Socket Rocker Toggle Switch Specifications: Working voltage: DC 12V - 24V USB output power: 18W Max Each Power outlet: DC 12V Voltmeter display range: DC 6-28V Toggle switch: DC12V, 20A Operating Temperature: -25 degree to 80 degree Multi-purposes: supply power for cellphone, tablet, GPS and other USB-devices Kindly Reminder: 1. For vehicles, it's recommended to get power from fuse box, while for the motorcycle, better connect to the wires of the key switch. 2. The led light will show up after the item is connected to the battery. Package Included: 1 x Dual USB Charger; 1 x LED Voltmeter; 1 x Cigarette Lighter Socket; 1 x On/off Button Switch; 4 x Fixing Screws; 6 x Blue Terminals; 3 x 20cm Connection Wires with 15A fuse _x000D_