IllusionalFate
Winter Madness
- Joined
- Jan 10, 2008
- Messages
- 330
- Reaction score
- 281
Why is the effectiveness of grow lights measured in lumens (luminous flux)? Lumens is the measure of how strong light appears to the human eye, and watts measures the total amount of light emitted (radiant flux). The absence of human eyes on cannabis plants would lead me to believe that watts are a more accurate unit of determining a light's effectiveness for growing. Could anyone with more knowledge shed some more light (no pun intended) on this subject?