Quote Originally Posted by PhatJay
Surely this would be true for the PL-L bulbs aswell? I am not saying the larger bulbs are better (their bulkiness is a downside to them). But I would think that the PL-L's whilst better overall, might not put out quite as much usable light as you think, as half of the bulb is facing a reflector (Unless you hang them vertically, which is easier to do than with the big 250's).
All horizontal hanged bulbs will be facing half of them to the reflector. PLL's have two tubes only, there are no other tubes between them. Light from one tube directly facing to you or to the reflector, not to other tubes. If you have a good shape reflector, you don't loose much. I have two tubes on my bulb and can see them very well. And i can keep all my tubes very close to my plants.
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Now you tell me how many tubes you see from out of 16? How many of them will be close to the plant? 250/16 = 15,6W light per tube. How much watt will reach get directly?
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What about the hole between U's? Where the lights go in there?
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