The Fenix TK family is composed of numerous flashlights that have as common denominator the combination of high performance with a robust and solid construction. Among the most popular models in the TK range we can find the TK15, which is the natural step from the TK12 (now renamed as TK09). Fenix has launched a special edition, called Ultimate incorporating an XP-L HI and jumping up to 1000lm from its previous base model(link is external) , which incorporates a XP-G S2 and reaches a maximum output of 400lm.