While most LED fixtures in that form factor do underperform on lumans foot-for-foot by a margin of around 30%, integral LED shop light fixtures usually have abo

While most LED fixtures in that form factor do underperform on lumans foot-for-foot by a margin of around 30%, integral LED shop light fixtures usually have about 30% lower power consumption as well and are usually chainable internally (e.g. you can run wiring between fixtures through the metal channel of the fixtures, similar to what's done with the fluorescent). So unless you're hitting a space limit you can likely install 30% more integral LED fixtures without too much trouble. Since LED retrofit pretty much requires changing the ballast anyway you aren't really looking at that much more expense going to integral fixtures.