Features 6 gang rocker switch panel, can control the electrical equipment inside the vehicle at will. Dual USB port to meet your various charging needs. Suitable for iOS and Android phones, GPS navigators, cameras, MP3 players, etc. The voltage indicator monitors the vehicle's voltage from 6V to 30V in real time. 12V/24V cigarette lighter socket with dustproof rubber sealing cap, waterproof. Easy to install, just put it into the switch hole, fix it with screws, and then you can start using it. Specifications Material: ABS Plastic + Rubber + Metal Switch Panel Color: Black Light Color: Red, Blue, Green, Orange (optional) Working Voltage: 12-24V Voltmeter Measurement Range: 6V-30V USB Port: 5V / 3.1A Product Certification: CE, ROHS Size: 18 x 11 cm / 7.1 x 4.3 in Package Weight: 430-432g Fitment: Universal for all 12V-24V vehicles, yachts, ships, caravans, buses, cars, etc. Package List 1 x Switch Panel 2 x Sticker 4 x Screws Notes Easy to install, but professional installation is highly recommended. Please allow 1-3mm error due to manual measurement. Thank you for your understanding.