Yes, agree with Stainless, 80 lumen is most likely bunk. After losses from optics/lens, even a hotrod high flux Lux III probably can't push past 60 lumens. The "theoretical" output that the manufacturer is telling you something that is totally worthless, as the "theoretical" is unachievable in practice. I tend to not buy from light makers that play this BS game, that's why I only own Arc's and Surefires.