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Comparisons
Sounds like none of us are ready to trust those selling to judge how true their product is. The trouble is that we can't easily compare "stereo A" with "stereo B" which is always very informative when comparing other products. Holding a white card up doesn't really do it either.
I wonder if the curve here is lower than we suspect. When you wish to insulate your home once you pass R-value of 38, any improvements are moot and certainly a poor investment. North light in Iceland in April is very different from North light in Madrid in June. I rather think that if we can get from 5500-6000k, even if this involves mixing of bulbs, then that is likely as good and certainly more constant than northern light which we all concede varies.
On a related subject, too much light in a studio is wicked. Photograghers measure "how much" light all the time. Seems we painters should ask this question too.
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Hybrid Mode
