LB, I don’t want to make any accusations or implications, but it seems like the relationship between the TK15 and TK15S is more than just similar to that of the SF31 and SF32. I’d wager that the lights share the same ODM. Nearly identical packaging, specs/UI, looks, etc. Look up pics side by side and draw your own conclusions. Shoot, the ODM even got busted shipping out ThorFire branded chargers with the Sofirn lights. Oops! :person_facepalming: