Type-C and QC3.0 USB Socket + Voltmeter + 12V Outlet + ON/OFF Toggle Waterproof Switch. Our Multi-Functions Panel provides over-heated, over-current, over-charging protection, safety for normal use; This dual USB charger power socket also smart to identify the most appropriate current for your device, ensure the longer lifetime of your device. Package Include: 1x 4 in 1 Panel 1x Wires   Product Details: Cigarette Lighter Socket: This is a universal 12V cigarette lighter socket. Input voltage: 12 - 24V DC Output voltage: 12V DC Digital Voltmeter: This voltmeter help you keep an eye on battery voltage maintenance of the battery, extended battery life to prevent accident caused by battery problems Voltmeter display range: 0 - 24V DC ON/OFF Toggle Waterproof Switch: This round toggle switch is Waterproof  Type: ON-OFF Working voltage: 12V DC Max current: 20A Type-C and QC3.0 USB Socket: Input: DC 12-24V Output(QC 3.0): 3.6V-6.5V/3A; 6.5V- 9V/2.0A; 9V-12V/1.5A; Max: 18W Output (USB C PD): 5V/3A; 9V/2A; 12V/1.5A; Max:18W