AOTOMIO Triple Function LED Car Digital Voltmeter & Dual USB Car Charger 5V up to 4.2A & 12V Outlet Power Socket Blue LED Three Holes Panel Waterproof Cap (Applicable on car, Motorbike & Boat)

I put this in my RV for charging phones and tablets via onboard 12 volt batteries when there isn't 110 volt available. I love that it has a built-in volt meter and both the round cigarette lighter style and USB style charging jacks. Great, sturdy product, glad I found it.

This looks fantastic in my car and I absolutely love it! Very easy job, wiring was a quick painless job, and you can rearrange you ports to fit how you'd like them to. Would recommend if you are looking for a cool little upgrade!

Works great for an auxiliary 12volt port application on a kayak. Charges my cell phone and runs other 12volt devices, ie fish finder, spot light etc.

If there is a zero star, I would give it. The concept looks good, but it lacks of engineer designing brain. I bought this charger that comes with 3 sockets, USB charger, cigarette, and voltage indicator. I have an 1/4 inch thick dashboard display space. After drilled 3 socket holes and tried to install it, I found out the hard way that the center socket (voltage indicator was too short) and I could not get it to securely tight it to the dashboard display space on my inflatable boat. Since I already drilled the 3 holes on my fiberglass dashboard and I could not re-done. This is very dump designed. They made USB, and Cigarette sockets 1 1/2 long, but the voltage indicate is about less than 1/2 long. It is a very useless product and design. I would not recommend anyone spend a dime on this product.

Nice quality case, easy readable output, all the parts, easy installation.... Exactly as shown

The unit looks nice and seems to work well. The problem is that the threaded collar on the middle voltmeter is only 1/3 the depth of the other two units. Whatever you are mounting it to has to be very very thin. The quarter-inch plywood was even too thick.

Works great. Added this to a 12 volt power box. I use the 12 volt output to power my telescope and also charge the battery.

Not a bad little kit for a quick project. Parts appear good quality. Can't pull full 2A from the charger, but not complaining.