I bought those same mats and I'm very happy with them. They have good fit, lightweight, stay in place and have nice edges to hold any water. I tried 3 or 4 others that arrived all crumpled up and wouldn't flatten out, one set was close but it didn't have nice edges.
Following as I'm curious to...
I bought this one that is 15A. It has enough power to run a DC air compressor. It should be able to run anything with a 12V plug.
https://www.amazon.com/gp/aw/d/B0DDXKMMP4