CATEYE HL-EL135N Bike Headlight – Bright 3 LED Bicycle Light with OptiCube™ Lens Technology, Easy Setup FlexTight™ Mount, Multiple Lighting Modes, Battery-Powered Operation, up to 320 Hours Runtime

This light is fantastic for making a cyclist visible. I use one on both the front and back of my bike and always keep them in strobe mode. The lights definitely get the attention of drivers however this light is not bright enough to light up the road or path in front of you in the evening, for that I recommend a different type of light in addition to this model. I have been an avid cyclist for about 20 and this light is the best there's an a cateye light that I had about 10 years ago, but I don't think they make that one anymore. The light easily mounts to your handlebars so if you're going in somewhere that you might think some piece of crap is going to steal something off your bike you can easily take this off. The two batteries that it takes last a very long time... I'm talking weeks. I just went on a bike tour in Europe and I had this light running whenever I was on the bike and I if I recall correctly the two batteries lasted about 5 weeks, so that's about 30 days of actual cycling and I'd say I was cycling about 6 hours on average per day so that's 180 hours or so on 2 AA batteries. That's the same as 7.5 days.Just buy it, it's a light that could literally save your life from some distracted driver going 45 mph and 2 feet past the right white line while he scrolls through his Instagram. This light is your best bet at getting that person's attention.

It works as advertised. Glad it takes batteries, to many things to remember to charge already

This is a workable light . I have used it to travel at night on a dark country road on a ebike . You cannot make out the potholes but you can seen well enough to navigate . I read the other reviews and I believe using 2 might help . I had purchased a few items and forgot to turn this off you hold the switch until it goes off which isn't intuitive but works well . I was pleased as I wanted white to match my bike . It looks nice and the mount is great . Does what I needed it too but to be honest I am looking for something brighter . Battery life claims by the manufacturer are fairly accurate you can count on at least 40 hours out of the batteries if not the full 80 claimed which is great and use rechargeable ones . I do not feel this was a waste as it is inexpensive and can be used as a flasher and backup light to get home if your second brighter lamp runs out of juice . I decided to buy the cree majicshine knock off and if I have trouble will buy a majicshine battery . I do think night riders need backup or two lights anyways to be safe and these take up very little space they are smaller then one thinks if they have never seen them in person .This was a very good purchase . I had been confused by the switch which was my fault . I have raised the stars to 5 though I have yet to test the longevity . I will update as I learn more . Be safe out there .. always safety first .

Pros:*I love the compact size,* the adjuster is simple yet effective. This makes adjustment so easy*80 hours is really good for constant light* Only 2 batteries, this is maybe the best part*Fairly sturdy, doesn't feel overly cheapCons:Only one major con*Not very brightListen, the situation you are using this for is probably going to determine if its bright enough for you. But if you ride in total or near total darkness, this definitely isn't bright enough. I bike trails at night, not up in the mountains or something but away from the streets. I should've known better. This isn't enough on its own to see very far in front of you if there aren't streetlights nearby.So if you live some place rural or you do like me, other lights should be considered. But, for being compact and taking only 2 AAA batteries, I guess what can one expect?I ended up buying a second light that is half the price and considerably brighter.Admittedly it has a slightly cheaper feel, takes 3 batteries instead of 2, and lasts only 65 hours compared to 80, but the bottom line is its considerably brighter. I use them both simultaneously, and have one on each side congruent to each other like headlights. Combined I have more than enough light with both of them, haven't tried the other one alone but this one definitely wasn't enough. The cheaper brighter one, for all who are curious, is the Bell Dawn Patrol LED Headlight, also available on amazon. If you buy one of each like I did its still under $30 so I am not complaining, but I think brightness should be taken under strong consideration in choosing a bike light.

I am 38 years old, and I have been using this light mainly in its flashing mode to attract attention from cars during daylight hours. I have used it in dusk/dark conditions, and it is just not bright enough for me to feel safe using it. If a car is coming toward me, its headlight glare drowns out whatever light this makes, assuring that I have about zero visibility of the road ahead. I installed a 12 V, 55 watt mini headlight that I had originally bought for an old motorcycle I had, and I will be using that for dark night conditions, with a 12 V sealed lead acid battery. (I am riding an electric bike, so the weight of the battery is not a big issue.) This light would be ok if there are streetlights, but not bright enough on a dark road. It is excellent for daytime visibility, though. It attracts the attention of cars in its flashing mode. I use it all the time when I am riding. Battery life has been very good thus far.

good light, wanted battery operated to stay on bike instead of recharging

Sleek and small, but what a huge disappointment. It's very tiny, not that bright, and the light is an unfocused beam. It feels durable and convenient, and is well built. But the fact that it's barely better than a pocket pen light makes it unsafe for a bicycle head light. I'd look for something better, on the trails in my area you won't see a raccoon ahead of you until you hit it.Update: Tested it in the dark, not worth it at all. I have singe AA flashlights that are way brighter. Do NOT buy.