I was in a local shop that has both TK40 and TK45 in stock. I was able to play with them in the store. (for you guys in my area AM Surplus in Bellevue NE) the TK45 has a bigger bright spot, and has more total lumens (630/760).
In a store you can only tell so much, I would like to hear from anyone who has taken both out in the dark and compared the bright spot at like 250 yards..
In a store you can only tell so much, I would like to hear from anyone who has taken both out in the dark and compared the bright spot at like 250 yards..