Frogecko, welcome to APC!
Spiral CFLs give a lot more light when they are mounted vertically rather than horizontally--almost twice as much. So if your hood only allows the tubes to be horizontal, I would try some of the u-shaped ones.
That said, I know very little about what kinds of screw-base u-shaped tubes are available, and haven't done any tests on them. I have very good resuts with Sylvania spiral CFLs, so if they make a u-shaped one it might be good to try first.
Spiral CFLs give a lot more light when they are mounted vertically rather than horizontally--almost twice as much. So if your hood only allows the tubes to be horizontal, I would try some of the u-shaped ones.
That said, I know very little about what kinds of screw-base u-shaped tubes are available, and haven't done any tests on them. I have very good resuts with Sylvania spiral CFLs, so if they make a u-shaped one it might be good to try first.
