I recently switched some standard fluorescent 48" tube fixtures over to LED tubes in my workshop and garage, and couldn't be happier with them. They use about 19 watts per tube compared with 40, they are about 5000K temp, so they are pretty white light, plus they start immediately when turned on, they have long service life, and they plug right into an existing fluorescent fixture with no re-wiring. These have worked well and they just seem to throw more light than fluorescent does, so now I am considering swapping all my overhead fluorescent fixtures in the train room over to LED's for all the above reasons. Plus I recall back a few years some discussions on the forum about train colors fading with extended exposure to fluorescent light, though I don't recall whether this was just speculation, or a real fact. I was never too concerned about it one way or the other since the overhead lights are only used when working on the layout; train running is done using dimmable low voltage incandescent track lighting.
Cost is not a big concern since you would only have to buy the LED tubes once; they have a rated service life of 50,000 hours. They run about $25 a pair, and I need 24; so around $300 total. For the amount they are used power consumption is not a big factor either, even though they burn about half the power of fluorescents.
So those that have done this swap over the layout; how do you like them? Worth the trouble and expense?
Rod