bin31zCome on over the BLF. There are several engineers that could explain it better than I. But I do know you will never get 3000Lm out of a single XM-L2 emitter without destroying it. I don't know of any single emitters that can emit that, except an XHP-70, in which case, is not the best emitter for a thrower anyway. The BLF GT has an XHP-35 HI.
bin31zHaha, totally agree. My BLF GT was $140 (early group buy). Q8 $40, My Zebralights all under $90. Even the BLF X6 from a few years ago was $25. Heck, the Special edition copper X5, and Stainless X6 in a wood box was $80