HID lighting

Susan Dobbs sed2nc at bigbird.stark.k12.oh.us
Sat Feb 3 13:49:51 EST 1996

Does anyone have experience with high intensity indoor lighting (halide
and high pressure sodium)? 

Specifically, do the two in combination actually reproduce the spectrum
for plants?  And, what sort of intensity is needed?  For a 12x12 room,
would two 1000W bulbs do it?  Three?

I am thinking of buying these in lieu of heating a greenhouse in the
frosty midwest, but would feel much more confident if I could hear from
someone who has actually succeeded at it.

Thank you very much!

Susan in Zone 5

More information about the Plantbio mailing list