- May 30, 2013
No, it's 2000 lumens for 2+ hours (on the 2200mAh 18650 batteries used here). The 5000 lumen Turbo mode steps down after a few mins to the lower 2000 level (hence the longer runtime). The 5 hours spec for the 2000 lumen level was wrong, as it was based on a calibration scale error in my earlier prototype testing. The runtime graphs in this review of the shipping version are accurate.
Edit, what does to 50% means in the runtime graphs?
2.25 hours > 50% on lvl 5?