I bought 4 of the "Toggled" LED T-12, non-dimmable, replacement bulbs, so I could od one fixture and see how I liked it.
https://store.toggled.com/products/4-ft-120-277-vac-direct-wire-led-tubes
So far, so good. In this specific instance, it was a mild PITA because I wanted to re-orient the light at the same time, but for the ones I don't need to re-orient, it will be easy.