Size15's
Flashaholic
I suggest comparing runtime output charts of the 15 lumen modes of the two flashlights rather than the paper-ratings for runtimeI'm kinda stumped at the rated runtimes on the lower levels, they seem to get worse as the levels get lower.
From your pic, the UB3T is rated 30 lumens/25 hrs and 15 lumens/27.5 hrs?
My LX2 is rated on low 15 lumens/47 hrs.