T12 vs T8s

bubbahotep1

Active Member
Does anyone have a clear definition on the difference between t12 and t8 florescents ?? They are obviouslly different in size, but which is best for growing ?? It would seem the t8s would allow more light through since the bulbs aren't as close or wide ...

Oh, i almost forgot.. I am usuing a ballast that holds either size. It is 4x2 and holds 4 bulbs..If this has alread been addressed, please point me in the right direction..
thanks !!
 

potroast

Uses the Rollitup profile
The difference is the amount of lumens. PAR lumens specifically.

The more the better.

HTH :mrgreen:
 
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