Review on ArmorAll Wet/Dry 12V Vacuum Cleaner: Powerful Cleaning for All Surfaces by Michael Burdette

Very good suction power when connected to a car socket. It sucks up most of the sand and gravel. The included attachments are also good for working in hard-to-reach places. Unfortunately I bought it with the intention of using it in our cabin with an inverter or 12v battery to clean windows. I didn't buy a small 120V adapter but tried my best and bought a "BESTEK AC-DC Car Cigarette Lighter Power Adapter". It's supposed to convert 12V to 120V 6 amps, which I think would be enough, but that doesn't work either. It turns on and off and is very slow. I've tried connecting it to a 12v battery and it's slow too. A very thick wire is required for normal operation. I'm assuming this means it's pulling a lot of amps. But I don't have a meter to measure them. It's a pity that there is no power supply or at least a socket and an additional adapter. But it sucks well.