Hi Jerry,
i order my stuff almost exclusively from Ch*na vendors (because of FREE shippping) and so far i've seen mostly Ultrafire and Trustfire. You can check DX, DD, KD, MF, etc for other brands: Yezl, FandyFire, ..
My thread on 10440's treats Ultrafire, and i like the built quality of the grey Protected Ultrafire. The blue Protected Ultrafire arent available any longer.
In your country you could find other brands too (AW, ..), unprotected of course. The protected ones are all made in the East (China/...).
I continue to use 10440 in my LD01R4, and once something happens (poof, ..) i would report back in the LD01 review thread.
NOTE: the LD01 review thread doesnt exist yet. haha