SensiStarFan
Well-Known Member
- Joined
- Jan 11, 2011
- Messages
- 946
- Reaction score
- 62
Hi all!
So a 400 watt HPS will put oout 45,000 lumens. A 600 watt HPS puts out 95,000 lumens. And a 1,000 watt HPS puts out 145,000 lumens.
This means a 400 watt HPS produces 112 lumens per watt. A 600 watt HPS produces 158 lumens per watt. And a 1,000 watt HPS produces 145 lumens per watt.
So I have two questions. First, did I leave something out in this consideration or is a 600HPS in fact more efficient than either a 400 or a 1,000? Secondly and probably more difficult, can anyone tell me exactly why the efficiency is different for different watt ballasts?
-SSF-
So a 400 watt HPS will put oout 45,000 lumens. A 600 watt HPS puts out 95,000 lumens. And a 1,000 watt HPS puts out 145,000 lumens.
This means a 400 watt HPS produces 112 lumens per watt. A 600 watt HPS produces 158 lumens per watt. And a 1,000 watt HPS produces 145 lumens per watt.
So I have two questions. First, did I leave something out in this consideration or is a 600HPS in fact more efficient than either a 400 or a 1,000? Secondly and probably more difficult, can anyone tell me exactly why the efficiency is different for different watt ballasts?
-SSF-