Quoted:
I don't think the tk have strobe, but the p3d's do and that is what i am thinking of
You're right. The TK doesn't have strobe, but it does have a 'tactical' momentary switch.
The P series lights do have strobe, but they aren't really 'tactical' lights, particularly in toughness and lack of a momentary switch.
What do you need the strobe for?