I did the coin test with 6500k fluorescent bulbs and failed after a few hours.
The 99.9% UV blocking plexiglass that we used to make a long viewing window into the screen room, passed a 3 day weekend test.
I dropped the kelvin rating down to 3000k fluorescent bulbs and used the clear sleeves from UV supply I posted above and all coin tests passed.
as for the LED's.. yeah it turns out the white led are in the 400 wavelength range.. right at the peek of our exposure curve.
