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Old February 20, 2018   #9
Join Date: Mar 2016
Location: NC
Posts: 511

Originally Posted by Tiny Tim View Post
Four Oaks, that really seems to be a lot of lumens for a T5 fixture. Are they really more efficient than a HPS or an LED of which I run both in my tents. I can believe the distance though,solely based on the heat they'd produce. The Lumens to watt calculator I used shows 27.000 for that fixture. Still a lot. A little more than my 250 HPS. I also run A Mars 300 watt LED and a MarII 400 watt LED. But, they use PAR value not Lumens. Good luck with that fixture and as always Happy gardening.
I wont disagree with you. Based off of info. from, that is 2 times as powerful as the 32 watt T8s that I am currently using.

There are now HO T8s. Upwards of 50 Watt. But, the bulbs are NOT cheap.
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