Review on 🔌 Linkstyle Dual USB Charger Socket Power Outlet with Digital Voltmeter Display - 12V 4.2A, Waterproof Dual Ports for Car RV Boat Marine Motorcycle Mobile - Blue by Brock Chisholm

Manufactured by Revain. The first unit they sent had digital display segments that were dead (lost a star). It's very easy to return and get a new one, still works great. It feels solid and should be of high quality. I would recommend it. Installation in a caravan. The device is always on when the battery is on. I'm a part of the electricity usage in dry camping so I'm going to run it with a switch. The display is bright enough to be a night light. I wouldn't install it in a residential area without a switch.