Weihao Bicycle Headlight, 10500 Lumens 7 LED Bike Light, Waterproof Mountain Bike Front Light Headlamp with 9600mAh Rechargeable Battery Pack, AC Charger

So first: The reason I'm now on my third one of these is because... of the batteries. The batteries are not sold separately (that I can find anyway) and by the end of the year, you'll be lucky to get 30 minutes out of them per charge. They just don't seem to be made with very good cells. Some of the One of the batteries lasted a little bit longer than the previous but after about a year, yeah. The performance was still not great. Maybe 40-50 minutes on the lowest brightness.Which is the other thing: I really don't think these are 10,500 lumens, as I have an actual, "pro-grade" (expensive) flashlight that's "certified" 10,000 lumens and it's WAY brighter than this one... that being said though, this is still PLENTY bright for a bicycle. Actually it's the brightest one I've found out of the 8 I've tried (the 7 LED one anyway). That's why I keep buying them. I know it's not ideal to buy a new light every year but I just can't seem to find any that light the dark trails like this one does (and has better batteries).In my experience, a lot of these bicycle lights seem to die after about a year. Then again, I am basically using these every day. So maybe it's not really that bad.My only wish is that they would sell the batteries separately so I could JUST buy the battery when one dies instead of stacking up extra lights as well. Actually if anyone has any advice on that, feel free to comment. I'm still searching :)

We were doing quite a bit of night riding, and had some close calls. I am not sure, but I have a good idea that the lights we were using had a highly focused beam that really reached out there, but was not so bright when seen from a few degrees off the tight beam. We had some VERY expensive top brand name lights that we could use night riding on trails and roads up in the mountains when we were camping. Wiggle the handlebars and the light waved all over the place. The bikes were stolen, along, of course with hundreds of dollars worth of lights.Well, we bought these. I knew that several people complain that the lumens thing has been misrepresented. So let me address that matter. One of our occasional rides is the Hiawatha Trail over the mountains on the old Milwaukee train route,(along side Interstate 90 near the Montana/Idaho border) with lots of tunnels. The longest one is the first one. It is listed as 1.7 miles long, and of course is quite high to allow for the tall trains the Milwaukee Railroad used, and then the electric cables that powered the electric locomotives. The problem is even with those very expensive lights, we had a terrible time in the tunnels. Those dark walls and high ceilings just sucked the light out of that narrow beam. It was a nightmare for us, trying to get through there.Well, last night we took the ride again, this time, the once a month midnight full moon ride, about sixteen miles and something like ten tunnels.We got in that first tunnel and we literally were flabbergasted. We lit up the whole tunnel. I mean REALLY lit up the tunnel. We had full detail, ceilings, walls, ground and where the mud puddles were. The one annoying thing was other riders trying to crowd ahead of us so they could get a full look at the tunnel.These lights are amazingly bright. You will see. You will be seen. And we were not using the bright setting. Oh, and the organizers had asked all of us to have our lights pointed down low so we truly could see the ground. We had done that. With regular lights, it is easy to not see the walls, and the water gutters on each side. We have had some close calls on that matter in the past. NOT LAST NIGHT! When they advertise that these lights are super bright, they are counting the lumens of the whole area the bike lights illuminate. No more narrow path. We can SEE where we are going.

Love it is nice and bright and long run time even on hi

My husband likes to ride a bit before dinner whenever time allows, nothing extreme just around the neighborhood but he almost got ran over by one of our neighbors... I got him this bike light which is very bright, 6000 Lumen, has three modes, bright, less bright, and blinking mode. It comes with everything you need to mount on the rail. The battery came charged, he went for about 30 mins for the past week and the batter is still going strong. The light and the battery can be separated so when battery runs out, just need to detach it for charging which is pretty convenient. It also comes with a head band mount.

First this light puts out a lot a light and for that it is good, but one fatal flaw makes me suggest you try another one.I use mine everyday on a Xiaomi m365 electric scooter to ride from/to train station. I'm not a big fan of the green light built into the power button, but I didn't mind too much since un/plugging one extra wire isn't a big deal.I was curious about the run time of the battery, so I skip the charging until one evening on my way home the light went from "high" to off instantly. No slow dimming or fade.I charged it and tried it again, but this time I only ran it on "low" thinking that maybe on that setting I would get a little bit of warning when the battery would run out. It didn't a few days later it did the same thing: turn off instantly , no warning sign.I'll live with it since I can switch to the built in scooter light, but for someone on a bike without any kind of backup I would not recommend this light.Too bad because the rest is pretty good, I got caught in a torrential downpour and the light didn't have any issues.The battery pack only has 2 side velcro straps and it will slide down and rotate if a 3rd one is not added to the top. Not a big deal just use a piece of velcro "tape" through the cover nylon anchor.