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Old February 20, 2018   #8
Tiny Tim
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Join Date: Feb 2018
Location: Near Albany,NY
Posts: 90

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.
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