[quote=CRX]
if you are trying to determine lumens on LiIon:
this post claims about 300 lumens on the Aluminum version https://budgetlightforum.com/t/-/34228
here is a test of a similar light, with a similar high as the Tool w Nichia… reports 226 lumens on LiIon (maukka actually measures lumens, not just a guess like the first link) https://budgetlightforum.com/t/-/37776
here is post with links about using LiIon in the TiTool