I've installed more than 100 LED tubes from a local commercial supplier at the
local makerspace and we haven't had an issue yet. Part of the trick is to avoid buying from typical retailers such home improvement centers, the likes of wal-mart, as well as the cheap fleabay/'zon sellers. The LED tubes that retailers sell are typically more than twice as expensive and exclusively drop-in, meaning that you're forever dependent upon that ballast. Fleabay/'zon tubes tend to be low-quality with the attendant reliability issues.
The
tubes I installed were all direct-wire 120-277VAC (or will work with most electronic ballasts) 4000K/5000K, 80 CRI, 18W/2100lm. Nearly a year in and no issues. Because of our availability of
volunteer labor, our ROI was only about a year vs retrofitting the expiring magnetic-ballast T12 fixtures with T8s - both require modifications to the fixture.
Cree recently announced the
ZR-RK retrofit kit, which has output to match 2-tube fixtures (but not quite 4-tube fixtures). Pricing hasn't been announced, but their marketing is promising an attractive price and 4-minute complete
in situ retrofitting. I'm personally hoping for a sub-$75 price.