The Planted Tank Forum - View Single Post - What to use as "hood" for DIY light?
View Single Post
post #11 of (permalink) Old 11-06-2012, 11:45 PM
Planted Tank Guru
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,015
Two T5HO bulbs, using a good quality, full HO power ballast, with great reflectors, will probably give you around 120 micromols of PAR at 20 inches. Since the great reflectors approximately triple the light from the bulbs, that means you should get around 40 micromols of PAR without any reflectors. That is a bit high for a non-CO2 tank, but if you use Excel it might work ok.

Hoppy is offline  
For the best viewing experience please update your browser to Google Chrome