Yes, I understand only too well about the human eye not being able to tell the diff in a 15 lum variance when over a 100 lum, and the diff depending on what batt type I use. But it sure would be nice to have some no BS figures to work with. The Liteflux gets good reviews, but without some specific info, they are doing more harm than good to perspective buyers, as the competition in this class of light is brutal. For me, it is a backburner until some concrete info is available, and I have spoken to others who are the same. But, I thank you for your input all the same.