this whole thing got started with the 150 watt DE, putting out a higher PAR level than a 400 watt SE. this was Sanjay's first test of them and the reason was he used a mini pendant for the DE and a bare bulb for the SE. so the DE had the benefit of a reflector. What he later found out is the reflector design of the DE was such that it caused a more intense output in a small area. so in essence it was better at focusing the light. the problem was that the light over a 2x2 section was lower than normal except for the smaller focal spot. When they started testing the bulbs with no reflectors then they found the SE bulbs put out more PAR/Light than a DE which only makes sense if you look at the shape and design of the bulb.
Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*
Some strive to be perfect.... I just strive.
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