Rydonair Universal Rocker Style 4.2A Dual USB Charger Socket with Blue LED Digital Voltmeter Gauge for Rocker Switch Panel on Marine, Boat, Car, Golf Cart, UTV, ATV, etc


About this item

  • Rocker style dual USB port car charger, DC 12-24V input, power outlet 2.1A & 2.1A for fast charging phones, tablets, GPS and other devices
  • With blue LED digital display voltmeter monitoring the battery votage condition,works great as a replacement or extra dual USB charger in rocker switch panel
  • Universal for boat marine, ATVs, UTVs, Golf carts, tractors or anywhere else can be thought of. Easy to use and install
  • Over-charging protection: It can stop charging automatically when the device battery fully charged
  • Warranty: Free replacement if any quality issue within two years since purchase date


Visit the RYDONAIR Store

Product Code:



In Stock


Dimension: 2 x 1 x 2 inches
Weight: 1 ounce
Color: Black
Material: Automotive/Marine grade ABS with UV
Input: DC 12/24V Output: DC 5V 4.2A


Check maximum voltage on devices to charge in advance.
Always cover outlets when in use to avoid dust and water entering
This product is for 12/24V vehicles only.
Only use on voltage specified.
Do not operate this device while driving.

Package Included:

1 x Dual USB Car Charger with blue LED voltmeter
2 x Insulated Terminals

Product information Color:RADUSBV Product Dimensions 2 x 2 x 1 inches Item Weight 0.82 ounces ASIN B076MSVQ9S Item model number RADUSBV

Larger than my standard socket, but I know that's a common problem. Set up was easy. I haven not tested the accuracy of the volt-meter yet, but the current rating is absolutely off. I ordered from Amazon hoping the quality would be a bit higher than ebay direct from China, but I feel that I should have saved myself the extra money and just gotten it that way, as I haven't gotten more than 1.25 amps from either (2.5 max) with any combination of devices I have tried. Overall, it does work well enough to charge my phone on the way home; if I keep the screen off.

The charger/gauge installed easily and with a secure fit, no worries of breaking off the tabs or otherwise damaging it. It charges my phone just fine and the voltmeter is great to have. The LED's are bright enough to see in daylight but not glaring at night (installed on the instrument panel of my Triumph Tiger motorcycle). I have it wired up so I can see the voltage output from the regulator, this way I can diagnose any potential problems in the charging system. I'm very glad I made the purchase.

I had bout a USB charger off of Ebay that said it was a QC3.0 - wrong! I ordered this one to replace it. It charges both my phone and my Zenpad with ease. It was very easy to install since I was replacing my cigarette lighter. I was very happy with the quality and the performance I am getting out of it.

I am using this on my Can-Am X3
I have it to 12v key power and a good ground.
It does not work most of the time. By that I mean there is no LED display and it does not power any devices.
Maybe I got a bad one?

Easy install, but my pathfinder required about half a mm of material removed from dash panel first. Perhaps I could have forced the install without this step, but it took less than five minutes total, so wasn't worried. Works great, while providing alternate power source options.

Easy hook up. Works great. Don’t know y but the cam wouldn’t capture the numbers. I took several pics same thing no numbers. But they do work. Fits perfectly in the knockouts. 1 of the 3 switches I installed in my new 2018 Polaris Ranger 570 full-size

It was easy to install and it does charge thru USB ports. It read correctly for about a day and a half then the digital readout went blank. Now it’s just a charger. Volt meter is burned out.
Not a good buy.