Cllena Dual USB Charger Socket 21A21A LED Voltmeter 3 Socket Cigarette Lighter Adapter 12V Power Outlet ONOff Toggle Switch MultiFunctions Panel for Car Marine Boat Rv Camper Truck Green

Specification: Color: Black Material: ABS, Aluminium Plate Voltage: 12V-24V USB Output: DC 5V / 4.2A Power Outlet: DC 12V Voltmeter Display Range: 0 - 24V Toggle Switch: 20A 12V DC. Operating Temperature: -25 degree to 80 degree USB socket dimension: Approx. 2.9 * 4cm (Screw Diameter * Height) Voltmeter socket dimension: Approx. 2.8 * 1.6cm (Screw Diameter * Height) Power socket dimension: Approx. 2.9 * 4cm (Screw Diameter * Height) ON-OFF Toggle Switch: Approx. 2.9 * 1.8cm (Screw Diameter * Height) Six hole panel dimension: Approx. 15 * 10.5 * 0.3cm (L * W * H) Package Weight: 260g / 9.2oz Package Contents: 1 * Multi-Functions Panel 4 * Mounting Screws 13 * Insulated Terminals Not Included Connection Wires NOTE: Regarding the each usb port 2.1A, it meant the maxi ampere of each usb port is 2.1A, if your device has no 2.1A itself, you use the ammeter could not test 2.1A. and you can use the device has 2.1 itself, for example: you can use ipad to test it, it can prove each usb port is 2.1A.