re: fluorescent light

martin zevenbergen (Martin.Zevenbergen@ALGEM.PT.WAU.NL)
Thu, 02 Feb 1995 09:17:32 +0100 (CET)

>I also noticed that there are different brands sold, e.g. coldwhite/
>warmwhite. Earlier (or other brands) are not labelled with respect
>of the type of light.

I read once in a book about aquariumlighting (I can search for the
title if somebody is interested) that the colournumbers (which are sold
by Philips), 82, 83 and 84 a little less, are the most efficient ones
for plant-growing. I think these colour-codes are only used by Philips,
so they're not interchangable between brands I think.
These are fluorescent tube lights, which are available in 60 cm and 120 cm.