LD1
Epic Contributor
I find it hard to believe that you would even be concerned about replacing what looks like an almost new installation of T8 HO with the "flash in the pan" LED's. The run of the mill LED's are presently putting out about 100 lumens/watt
Cree has already shown 276 lumens per watt in lab demos.
Now for those of us that are replacing failing fluorescent fixtures or doing new construction the dropping price of LED's make them very viable. But the best solution may not be standard "tube" shaped fixtures. It might be better to just use LED strips or string lights.
They were installed last year. But the lights were second hand. All came out of where I work where they decided to replace these with battery back up types. Have been slowly doing that in different areas of the plant.
Had to give them a good cleaning, and do some wiring changes (bypassing the transformer) cause these do have 120-277v ballasts, where they were in the plant was 460v lighting.
I am very happy with the light, but being down there all day, them kwh add up.Again, just them 8 lights is 48 bulbs @ 32w each...1.5kwh