I have had it a month now.
very nice light , clips right into the hard hat puts the light where every I am looking but it is out far enough with the brim that the light doesn't catch my glasses .
3 settings and 3 run times
1 is a bright high spot light 215 lumen they claim 9 hours on a full charge
2 is a flood bright but uses less power longer run time , doesn't have the distance but anything in about 20 feet is fairly well lit up. 100 lumen 14 hours on full charge
3 is boost both flood and spot high power , less run time 300 lumen 4 hours on full charge
these are the claims I got close to a week on a charge it has a nice feature when you are running and it is nearing done with the power it flashes the light about 4-5 times then drops to the 100 lumen lowest power consumption I don't know how much longer it will run that way but so far more than 15 minutes.
I probably look strange walking around with a hard hat on but there are few tasks I can't do in the dark while wearing it , it is that bright. I probably look a little odd splitting kindling in the dark or shoveling and other tasks but it gets light as I get to work and dark as I get out of work this time of year it's nice to get some things done outside.
my children do complain I am blinding them when I carry in a load of firewood and I still have it on , I remind them if they carried in the firewood during the day when the sun was out I would not have to.
the light also has a magnet on it so when I charge I just stick it on the side of the file cabinet where my USB charging station is , I could also charge it in the truck it could be charging off the truck if I was using it away from home.
the hard hat is ok , a little small for me but it said it only fit to a size 8 head
the hard hat makes it comfortable to wear it has a front and back molded in socket to attach the light. you could easily carry a spare and change them out when it starts to flash.
my old light was a streamlight it was small and light but it was about 100 lumen flood on high and it had only an hour run time like that.