The Planted Tank Forum - View Single Post - Comparison of Lighting Types (Lumens and Watts)
View Single Post
Old 12-16-2005, 12:22 PM   #6
defdac
Algae Grower
 
defdac's Avatar
 
PTrader: (0/0%)
Join Date: Dec 2003
Location: Linkoping, Sweden
Posts: 125
Send a message via ICQ to defdac
Default

Lumens doesn't tell much how good a bulb is growing plants because lumens is weighted towards human response (our eyes are sensitive to yellow-green, the same light plants *reflect*):
http://www.aquabotanic.com/lightcompare.htm
__________________
defdac is offline   Reply With Quote