What T5?

kindbud27

Well-Known Member
What T5 light would be equivalent to a 400 watt MH?
I am not sure if I am even asking the question right. Sorry in advance
and thank you for the help.
 

Pew

Active Member
Roughly speaking;
MH 400w bulb ~ 30,000-36,000 lumens
4 Foot High Output 54w per T5 tube ~ 5,000 lumens
Without getting into light penetration after x# of feet, and more details, a 4 foot 6 bulb + 4 foot 1 bulb t5 fixtures (for example) give you the comparative lumen output before attenuation as the 400w HM..
 
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