12V USB Outlet, Ollcuz 12V/24V 36W Aluminum Waterproof Dual QC3.0 USB Fast Charger Socket Power Outlet Adapter w/LED Digital Voltmeter for Car, Marine, Boat, Motorcycle, Truck, Golf Cart, etc

Works great, charges phone or tablet very quick. Was a little bigger then my factory 12v outlet had to drill the hole a little bigger.

nice for my 996 porsche .. easy installation .

Using this unit in a car. Powers my phone holder/ charger. Wireless charging power is amazing! powerfull enough to get me a Rapid charge! Great power with the direct cable connection too. Been about 2 weeks so far so good! (03/26/21)

If you dont mind installing electronics, cutting wires, testing things, and things like that... then it is a great product. It is really nice to have a couple of USB ports instead of those cheesy adaptors. Works really well.

Looks great. Nice not having a plug adapter sticking out of the dashboard.

I installed two side by side in my center console. They work, but the digital voltage display differs between the two. I realize these things arent like Swiss made time pieces in terms of accuracy, just annoying and makes them feel cheap. I would be happier without the digital volt readout.

This is an extremely high quality charger/voltmeter. The shell is made of machined aluminum and anodized vs being painted. It comes with a tight fitting rubberized cover, so you know its doing is job of keeping liquids out, instead of cheap hard plastic which will crack over repeated use. The voltmeter accuracy is great. I tested it against 3 different calibrated multimeters and the voltage read out was with .05 volts which plenty good for all application where this is used/needed. I installed this charger in my car to monitor its charging output after numerous parts store alternator failures. The dual QC 3.0 ports, for me, was a bonus and works as expected(measuring up to 2500ma with my battery monitor app). Installation is very easy if you are looking to replace your factory outlet. The only modification necessary is to slightly enlarge the original mounting hole a tiny bit, which can easily be done with a file or Dremel. I have to also say, not only is this a great charger/ voltmeter, the company has great communication and is a pleasure to work with. I did have some issues with my first order. However, after contacting the seller my problem was quickly rectified. They were very understanding and quickly sent me out another charger, no questions asked. Not only that, they followed up with me a few days after receiving the replacement to make sure everything was perfect. Great customer service, like this, is rare thing now and days.

work great easy to install

his does NOT have an Aluminum Casing as stated in the product title. It is also not Waterproof as it has two holes in the back of the case. Ad should read: Our cheap Chinese USB charger with tiny voltage LED is like everybody elses cheap Chinese USB charger however we lie about it being Aluminium and waterproof.

Wanted to upgrade an older 12v plug to usb on our pontoon boat. Easily installed in existing hole and added benefit of being able to monitor battery voltage with digital voltmeter built in. Great upgrade to modernize an older boat.