Ah, yes. The 2019 and the 2020 stock headlights are comparable in brightness, which is to say they are quite dim. These mustang lights are very bright (almost a little too bright honestly)
After fighting with it I gave up and took it to a buddy who had to rewire the whole housing to get it to work, but it works. It's pretty clean, gotta say.
They're just ones I got off Ebay from China.