Massdrop(now just Drop) is continuing to drop the ball in so many ways. For this flashlight, the description gives zero information about run times. I could probably look that up elsewhere on the internet, but I should not have to. That information should be part of the description and/or specs on any site selling this type of high end flashlight. Also, no one from Drop has addressed a question asked in November of last year about whether this light comes with the weapons mount shown in one of the photos for this drop. I’m going to take a stab in the dark and say probably not. That should have been long since addressed though by Drop personnel and possibly offered as an upgrade if not included.