hahoo
Enlightened
We have posted it before. Osram does not bin their LEDs. One reel of black flats could include many different brightness bins of black flats.
That could very well explain the lux difference, or it could just be not as good of a focusing job on the lesser lux one as well.
or light be a few inches closer to the lux meter, diff ambient light, different person holding the light, lux meter battery tad lower, lux meter just being a lux meter, etc........
thats really not that much diff at all at that level