I own, and often carry, a lot of lights. The i1R2 probably hasn’t got the most hours on it, but in terms of the number of times it gets turned on, it’s by far the winner.
The flashlight mode on my phone camera’s flash.
my phones flash light
My Zebralight SC64c LE is probably the all-time winner. The Skilhunt M150 is up there too.
By far my Lumintop Tool 2.0 AA. I like it so much, I bought a second one that’s sitting in the little tchotchke tray on top of my PC tower, unused, in case something happens to my EDC one so I can put it into service right away.
This light isn’t super powerful or fancy, it doesn’t run a firmware with a million modes, and it can’t cast in a bunch of colors. But it’s never, ever failed me and it’s got enough high and low range that I basically never use anything else. Much to the disappointment of everything else in my Drawer O’ Flashlights, which continue to go unused.
Tough. I jacket-pocket-carry a Fireflies E07 2021 (non-pro) and it gets pulled out often briefly at work, but I have another Fireflies light sitting by my front door (E12R) that gets used 3 or 4 times daily for dog walks after dark and moving sprinklers around at night in the summer.
Most hours award goes to a D4Sv2 in my kitchen, it ceiling-bounces for 30 minutes every morning before dawn while I make coffee, feed the dog, make lunch etc. I just recently swapped out a tint-ramper with SST-20 2700k/4000k for a single channel with a boost driver and three 2700k with single 4000k. Good call for this usage, the boost driver lets it sit at top of ramp for said 30 minutes and barely get warm.