Magicshine EVO 1700 Underneath Mounted Bike Lights for Night Riding,USB-C Rechargeable Bike Headlight, IPX 6 Waterproof Bike Front Light for Road Urban Cyclists

fantastic. bright, many options and the battery life has been great. The light pattern has a sharp cutoff so you don't blind oncoming traffic. It's bright enough to basically be a moto light. Remote is good, the app is fantastic. The app allows microadjusting of brightness and many functions. Mount is secure. It's heavy, solid unit.

The battery life is great, 11 hours on low beam with very usable light. The remote switch works great but only for a limited time when the light is off to save the battery, otherwise it's great. One second touch for on/off, short press to change levels, and one press on the square button for max brightness for those screaming downhills! It's brightest setting is VERY bright, like daylight bright. It looks great with a modern design that will fit in with whatever bike you put it on. I use is for long brevets and it's been troublefree.

Got this light on sale for $58, which was a great deal! Haven't ridden extensively in the dark dark yet due to being effectively the summer solstice currently, but I will update with my experiences once it's darker in the mornings.Of note, even with a large fan blowing on the light to try to cool it, when on the high setting for the high beam, the light gets hot enough that I don't want to hold onto it and it reports in the app that it's at 60C temperature. This may contribute to the light output falling off quickly over time in this mode that some reviewers report. On the high setting for just the low beam it sits in the 35-40C temperature range with a fan blowing over it which is a more reasonable temperature for LED output health.The beam cutoff is good and it gives a nice wide swath of light, but I do not like any of the flashing modes and they aren't very customizable. The battery life quoted for the flash modes is poor and the instructions and app interface to customize the flash modes is extremely confusing. I've resorted to running the high beam at 10% output as a daytime running light instead of trying to mess with the flash modes, hoping it'll get somewhere around 10 hours of useful runtime like this.The app's battery level reporting is not very granular. Mine seems to show 100%, then 50%, then 20%, and there's no reporting of runtime remaining, which is annoying since you can easily adjust the brightness levels which will dramatically change the runtime compared to the stock light output levels where Magicshine give runtime estimates. The button LED which indicates charge level is similarly not granular, when the app reports 50% battery the button LED is red.Overall, I think this is the best light for the money, but it's definitely not the best light.

1. Super bright, I would say that 800lm on the low beam is more than enough for all conditions, 400lm is pretty good and I would recommend 600lm if you want to have a similar experience to 800lm while saving some battery life.2. The cutoff is awesome, you can just use it on the low beam setting and switch to the high beam on some dark intersections and stuff like that to alert other people, it would be useful to read a sign or stuff like that on really dark conditions, otherwise you can ride without blinding people using the low beam.3. The beam pattern is great, super wide to the floor with very sharp lines, really long which gives you plenty of time to react.4. I am not a really big fan of really bright flashing lights so I wouldn’t use this one as a flashing light, you will just blind everybody with this light, having said that the flashing mode is great to alert other people that you are there on certain conditions, the difference between the low beam and high beam distance is considerable so when you turn on the flashing mode the floor below a pedestrian or another cyclist will start to flash which they will instantly notice a few meters before you arrive, just make sure you turn it off after you overtake them to not annoy other people, use it sparingly.5. I love the remote, it makes switching between modes super easy and the high beam wouldn’t be usable without it.6. The mounting system, super practical and it puts the light on the perfect position, it’s perfect if you use a computer already.I am giving it 4 stars instead of 5 for a few reasons:1. The battery life is a bit misleading, the light will “last” 3hs when you set it to 800lm on the low beam but after 2hs the light will go down to about 200lm all of the sudden and you can’t change it until you charge it.2. As some people mentioned the remote won’t work sometimes, the issue is not the remote but the light, for whatever reason sometimes the Bluetooth on the light will stop working and you can’t control it using the remote or the phone app, the only way to fix it is to plug the usb cable and it will start working again, pretty weird, it happens very very rarely but I would turn it on to test it before you go out just in case.I can see how the plastic support that the light is attached to would break if you over tighten it, it looks stiff and like most things that are stiff they are also brittle if you compress them, I haven’t had an issue with it so far but after seeing the other reviews I made sure to not over tighten it, you don’t need to over tighten it to get it into the perfect position.

Bright beam, quality light.Do not expect the bolts to work with the mount, you will most likely spend 10 or more dollars buying new bolts.The mount will always fall forward if you leave the light on it, its long arm does not support the weight of the light.You are better off spending 15+ dollars on a new gopro mount for this light, so you have zero issues.This mount I bought works really well with this light:HSU Aluminum Bike Bicycle Handlebar Mount for GoPro Herohttps://www.amazon.com/dp/B07P9ZBV31?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1The wireless controllers to control the lights are next to useless, constantly desyncing, sometimes forcing you to full charge the light before you can even sync it again.I would not recommend using the wireless controllers or the mount this light comes with, and I think the light itself is high quality, bright.But again, I would only buy this light when its on sale for 55 dollars if I were you.