I just got this, for a reason. I like it better than the UDR! Yes, the UDR is much better built, more functional, much brighter. The reason I prefer the HL4 is because it is much smaller, weighs much less and has a rubber grip. The truth is unless you are doing Military operations or a Flashaholic you do not quite need the output of the UDR. Plus $99 Vs. $1,370. Obviously the UDR is much nicer but for these reasons I actually prefer this. No way 2,200LU though which is okay. Figure 12x123 Vs. 4x123. It is not really possible but it is plenty bright. I know this is an old thread but I figured I would provide my thoughts on it. My example is fine for Chinese. Maybe the other guy just got a dud. Threads and everything else are good. The dual battery thing is sort of a trash bag it seems but it actually works. I mean it is like just cellophane that expands. Still innovative at making it much smaller and much nicer than the Rayovac Beast. I just wish you could charge inside it. It is certainly fine for $99 though.