Phisherman wrote:
I have used a combination of cool and warm fluorescent lamps in the
past, but now my local store only has the following (in the shape,
length I need):

Bright White TL850
DayLight White TL865
Cool White (3 kinds) TL841, ADV841, TL741
Neutral White TL735
DayLight Deluxe DX Alto

Since I can not find (size T8) Gro-Lux that fit in my fixtures, which
one of these is best for plants? Would a combination of types be
better than any single type? Does Color Temperature matter? CRI? I
guess the last model "has reduced mercury content." I could care less
about how the light "looks to the eye" but more importantly the
efficiency of the tube to making plants grow. TIA


The TL735's are good. Plants also seem to like 730's or 830's.

Bob