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

["S. Hieber" <shieber at yahoo_com>]

Generally, they won't get yo any closer than watts will,
provided you're using bulbs known to work well for plants,
tri-phosphor, broad scpectdrum, etc.

sh
--- Jerry Baker <jerry at bakerweb_biz> wrote:

> 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 
> studies.
> 
> 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
> http://www.actwin.com/mailman/listinfo/aquatic-plants
> 

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