The light is a bit heavy compared the to the Light & Motion light it replaced but the battery life is the best I've ever had on something this compact. Most of my riding has been during the day so I'm only using one of the flash modes most of the time but it's been over a month and it is still reading in the green. I might also have about an hour of use on the low and medium setting after dark so really it is very impressive, wish I kept track of the actual time. The light is solidly built and I like the mounting system, no slippage at all and I do ride on some terrible roads. It is bright enough for me, there might be some washout as the other reviewer mentioned but it hasn't bothered me at all, for the price this has to be one of the best available.
I use this light as the main light for road biking, fixed gear, and gravel cycling. My secondary light is a Cygolite mounted with a gopro mount on my helmet. The Knog is pretty bright, though it definitely seems brighter offroad. Compared to the Cygolite, the Knog's light is a little bit on the yellow side, so that makes it wash out a little on the road. If the light is used by iteself, this isn't as noticable. I previously had a Light and Motion light (they went out of business) which has a much wider beam, but I can't complain too much. The usb C charging connection is also really nice as it charges quickly and is not a keyed connector.
