Review on 4-in-1 Marine Switch Panel with 12V Dual USB Charger Socket, LED Voltmeter, Cigarette Lighter Socket, and LED Lighted ON/Off Rocker Toggle Switch for Truck Car Marine Boat RV by Tony Francis

Spent the day installing it in my Sprinter based motorhome. There is no free space on the dash so I had to make something out of 3/8" plastic to fit the top center of the dash. The first problem inherent in the unit was that it shorted out so short on the voltmeter that the 3/8 inch back (plus face) wouldn't let the screw grab. It should be applicable for maritime use. I've never seen a boat dashboard smaller than 1/2 inch. I'm hoping to hear a workaround from the supplier as I don't want to glue them in place as I think that's the most likely component to break. Powering this bay was also a challenge. Now, thanks to my granddaughter's thin hands, I have the power. 3 fuses blew when plugged in. The lack of a schematic sucks, but I'm reasonably sure it matches the one provided. One of the components seems to cross the negative and the positive. Tomorrow I will diagnose or return on Wednesday. OK, finally it works. I changed the main fuse to a 20A bar. and soldered after soldering all the ends and pigtails. Too bad they didn't have a support group to give me advice on how to get around that ridiculously short voltmeter.