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07-13-2008, 08:41 PM#1
OPSenior Member
Do I have this right?
Ok, say I had four 26w CFLs, each 2,000 lumens. That would be a total of 104 watts and 8,000 lumens. If I have the formula correct, that would be a combined 76 lumens per watt. That is a low number, correct?
A 400 watt T5 setup would provide 40,000 lumens at 100 lumens per watt. Is the difference that significant?Backpacker420 Reviewed by Backpacker420 on . Do I have this right? Ok, say I had four 26w CFLs, each 2,000 lumens. That would be a total of 104 watts and 8,000 lumens. If I have the formula correct, that would be a combined 76 lumens per watt. That is a low number, correct? A 400 watt T5 setup would provide 40,000 lumens at 100 lumens per watt. Is the difference that significant? Rating: 5
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07-13-2008, 10:47 PM#2
Senior Member
Do I have this right?
Originally Posted by Backpacker420
Significant?
Depends on what one calls significant' yeah?
It's 24%
But, ya gotta factor USABLE light
Lumens are for people.
Plants see things differently.
So, Bro', read da grows.
To mangle a metaphor.
Da proof is in da budding.
Regards.
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Plants do things for a reason..they don\'t just decide one day to get root rot or act funny. - Weedhound :clap:
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