Cllena Dual USB Socket Charger 2.1A&2.1A + LED Voltmeter + 12V Power Outlet + ON-Off Toggle Switch Four Functions Panel for Car Boat Marine RV Truck Camper Vehicles GPS Mobiles (Blue);

Color: Black
Material: ABS
Voltmeter socket dimension: Approx. 2.8 * 1.6cm (Screw Diameter * Height)
USB socket dimension: Approx. 2.9 * 4cm (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)
Four hole panel dimension: Approx. 19.5 * 4.3 * 4.6cm(L * W * H)
Package Weight: 120g / 4.2oz

Package Contents:
1 * Four Hole Panel Base
1 * Blue Dual USB Socket
1 * Blue LED Voltmeter
1 * Power Outlet
1 * Blue ON-OFF Toggle Switch
9 * Insulated Terminals
4 * screws
Please 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.