Cllena Dual USB Socket Charger 2.1A&2.1A + LED Voltmeter + 3-Socket 12V Cigarette Lighter Power Outlet Adapter + ON-Off Toggle Switch Multi-Functions Panel for Car Marine Boat Rv Truck Mobiles (Blue)
<b>Specification: </b><br> Color: Black <br> Material: ABS, Aluminium Plate<br> Voltage: 12V-24V<br> USB Output: DC 5V / 4.2A<br> Power Outlet: DC 12V<br> Voltmeter Display Range: 0 - 24V<br> Toggle Switch: 20A 12V DC. <br>Operating Temperature: -25 degree to 80 degree <br> USB socket dimension: Approx. 2.9 * 4cm (Screw Diameter * Height) <br> Voltmeter socket dimension: Approx. 2.8 * 1.6cm (Screw Diameter * Height) <br> Power socket dimension: Approx. 2.9 * 4cm (Screw Diameter * Height) <br> ON-OFF Toggle Switch: Approx. 2.9 * 1.8cm (Screw Diameter * Height) <br> Six hole panel dimension: Approx. 15 * 10.5 * 0.3cm (L * W * H) <br> Package Weight: 260g / 9.2oz <br><br> <b>Package Contents: </b><br> 1 * Multi-Functions Panel <br> 4 * Mounting Screws<br> 13 * Insulated Terminals<br> <b>Not Included Connection Wires </b><br><br> <b>NOTE: </b><br> 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.