I made another version of the LED light arm with a cabinet light that you can get off Amazon (USB with or without a power adapter) https://www.amazon.com/dp/B08VDH1GJV?th=1 Just print two and slide the light in. I used PETG but PLA will probably work fine too.
It's a little weird because I halfway filled in some of the hollow spots from the other model, but didn't get it all. The arms work fine though. If I continue working on it I might upload another version that's a little more refined and possibly has spots for zipties.
The author remixed this model.
This version is for this cabinet light from Amazon https://www.amazon.com/dp/B08VDH1GJV?th=1