bondr006,
yes, i did follow that link. that's why i'm attempting to contact olight001.
the T20 light looks very nice and those light levels look perfect for most of my uses.
the run times are probably a bit optimistic and might be taken down to a 1 or 2 lux reading is my guess. however, that's how most manufaturer's do it, so my words should NOT be misconstrued to be against OLIGHT. they are NOT a judgement; just an observation. big names like PETZL and Black Diamond use such optimistic burn times too. rarely, with only a few exceptions, has a headlamp provided usuable light in the forest for nighttime navigation for as long as any manufacturer claims. typically, only semi-, or fully- regulated lights have lived up to (or come close to) manufacturer's claimed burntimes, in my experience. if i didn't miss it, the webpage doesn't say if the T20 output is regulated. the statement "Unique digital circuit control technique" doesn't necessarily imply regulation, just a method of switching on-and-off and changing output modes.
Elsewhere, olight001 wrote that OLIGHT needs a North American or USofA distributor, so i'm not sure that i'll be able to purchase one directly from China. however, it looks like a nice light, so, i figured that i would at least try.