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Re: [APD] light and the w/gal rule

S. Hieber wrote:
> The question is whether lumens is any better than wpg using
> decent lights. It really doesn't get one much to switch to
> lumens, except a bit more math excercise.

True that. The issue, then, is whether lumens are more closely 
correlated with PAR than watts. Ironically, it is nearly impossible to 
find lumen ratings on bulbs that appear in Advanced Aquarist bulb PAR 

Does anyone know a good source of data that contains both PAR and lumen 
data, or even bulbs where the manufacturer publishes lumen data?

Jerry Baker
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com