See this new thread I made on it. It's an STL V3 clone from Manafont (at only $13.50). I would guess that this light is very much comparable to the Ebay "Super Tactics Q5 super thrower" (is that the one you mean by UltraOK Q5?). That "Super Tactics" one is on my wishlist (just waiting until after the Chinese New Year). Like I said above, this shot doesn't show off what this light can do! It's really impressive to me! (See the link to my thread.)
-Garry