DIY Four Hole Panel ; Dual USB Socket + Voltmeter + 12V Outlet + Toggle Switch. USB socket output: DC 5V / 4.2A; outlet: DC 12V; Voltmeter display range: 0 - 24V.Small size and performance.Easy to install, convenient to .Widely used for car, truck, Rv, ATV, boat, etc. About the switch hole, It could be used for a . Can Not be used to light cigarettes.If you 't need the switch for a while. So enjoy it on what you wold like it to be. It has two different , why not ordering it nowWidely used with electric equipment for supply:Vehicle,GPS,DVR, mobile phone, camera. cap of lighter socket the ports when not in .Waterproof or Dustproof for the interior or exterior application.Fitment: Fit for many vehicles(Car,Boat,Motorcycle,Marine,UTV/ATV,RV,Truck, Vehicles) to install the dashboard area where mobileSpecifications:Color: BlackMaterial: ABSVoltmeter socket dimension: Approx. 2.8 * 1.6cm (Screw Diameter * Height)USB socket dimension: Approx. 2.9 * 4cm (Screw Diameter * Height) 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. 10.5 * 8.7 * 0.5cm (L * W * H)Switch AND Voltmeter :The to control and with the blue light to remind poeple when the switch on.Voltage display can timely display the battery voltage whether in the normal range or not and with blue digital display to let you know the battery's voltage data.Dual USB AND lighter:Input: 12/24V only;Output: 5V-4.2A(2.1A+2.1A),with LED diaplay.devices easily.Gentle Reminder:Gentle Reminder:Check maximum voltage on devices to charged in advance.Package Contents:1 X Four Hole Panel 1 X Dual USB Socket1 X LED Voltmeter1 X Outlet1 X ON-OFF Toggle Switch9 X Insulated Terminals4 X screwsOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.