that's interesting - i think what they meant to say was "We have come up with a senseless way to measure lumens. But our lumen is much better than anyone else's - just look how good our bulbs are!"
more marketing hype.
and i agree with you - there shoould be a standard measurement technique for measuring horticultural lighting. i think a lot of the problem is when people use industrial lighting - measured in lumens - and apply those numbers to horticulture, which really then becomes comparing apples and oranges in some respects.
as you mentioned, many, if not most, of the true horticultural lamp manufacturers already have adopted par. maybe i'll get me one of those fancy par meters...did someone say "experiments?"
