ALLTY 2500S Bicycle Light

This is a really nice bike light. The light has 3 brightness setting and 2 mode flashes. The 300LM output works well for lit bike trails but I like the 750LM best when there is traffic to be better seen. The 1500LM setting I only use in sections of the road that are really dark. I have the light slightly tilted down not to blind drivers, but the other great feature is the remote switch which lets you use it as a high bean switch like you have in your car. I can easily and quickly switch between 1500LM and 750LM at a touch of a button. The light gives you some great information in its screen. When you switch it on it will give you a battery level and as you switch brightness levels it will do the same. If you leave the light untouched for a few seconds, it will switch the display over to letting you know at the lumen setting you are currently using how many hours and minutes you have left on the battery. So, it's great to not only know battery level but what does that mean in actual time. The light is fairly light weight and easy to mount as well as the remote control. The battery is removable, and you can purchase additional batteries if you might be doing a long ride or just like a backup. Construction of the light is solid and if a very premium light. You can download the app and get even more features using your smart phone to set up profiles and better control the output of the light itself. I like the way it is setup right out of the box, kind of hard to mess with perfection but I guess it's nice to have options.

Todo en orden gracias

I like it, but battery drains quickly at full brightness. Great light overall.

good quality. little bulky . cant be mounted upside down . good beam and functionality

Great bright light, but still small enough to tuck in the back of my jersey

The light itself works well. The wide beam is great, but I'd like a spot with a longer throw. The flashing options are great for saving the battery.
I've had the light blink on and off several times, which is unnerving.
The android app is garbage.

Fantastic experience, I highly recommend it.

The light is heavy. It doesn’t have a long run battery. We shop, play, work out and participate in long events. I’m looking for a 30 hour operating ability

+
Very bright, feels brighter than its advertised 2500 lumen
Replaceable battery
High build quality
Very versatile if App worked properly

-
Produces a lot of glare at its default minimum 300 lumen. Can' t be used on roads.
When battery is low (<=10%), light automatically switches to 300 lumen output, irrespective of what minimum level one has programmed in the app.
App feels like it was in an early beta status. Needs a lof of improvement until it is useful.
Remote is fiddly to mount and does not stay tight on the bar. I am not using it for those reasons.
Bottom line: The light in its current state is of limited use. However, if the above issues were solved, it has the potential to be a top product.

Great light for darkest of mornings. Easy setup and remote buttons add even more functionality.

Got this for my son so he can ride at night at college. He reports the light is very powerful. He is very happy with what he got.

After customer support finally resolved my issue, I'm updating my review. The light has really nice features, especially the LCD display showing remaining battery, and some quirks, which I'll later describe how to fix. Ultimately, it's the light I've always wanted someone to make. The Garmin-style mount is also fantastic and light weight. It also holds the light very securely and has a number of different sizes of straps. One person here commented that the light is heavy, but it's not at all. Nearly all the weight is in the battery, and it's sizeable, which is a good thing. Still, it comes in 70g lighter than my Moon commuting light and about the same as my similar Cygolight. I really like the beam pattern, bright in the front with just the right amount on the sides. I was afraid that with only one light, it would not have good sideways spread, but it does. Now the quirks. Bluetooth didn't work. so I sent the light back. The replacement had the same issue, so I contacted support and received a response that they'd get back to me. A few weeks later, they did, after apologizing for a delay due to the 4th of July (which apparently fell in October this year). The fix is to pull out the battery and put it back in. Initially that didn't work, but I did it when the app was searching for the light, and it worked. Inside the app, hit the add button, and you can create some really nice power modes. Another quirk is the remote pairing instructions didn't work. I suspected the battery was covered, as is common in a new product. I opened the remote, and that was it. I removed the plastic separator, and it paired. For the most part, the remote probably isn't useful, but for the ability to toggle the power up to maximum. If you hit a spot where you need a lot of light, you can punch it up to high and back down with a click. A scary quirk was when I was riding on a trail in the middle of nowhere, and the light completely shut off for a couple seconds, and then resumed working. That has only happened once in the 6+ hours I've used it, and it did come back on fast. Still, it's terrifying to be flying along in utter darkness. I suspect it's a software glitch as the battery fits very snugly. The unit is solidly built. I dropped it on concrete a day ago, and it didn't leave a mark on it. Even with the light cutout, I'd buy it again. I have had this happen on other lights, and it was worse. It has so many features, all of them useful.

Main features- the ligjt is bright enough for unlit off road track. This is very good The app (to create flash programs etc and control from the remote ) quite unpredictable Eventually worked out need to remove battery to reconnect app following remote pairing. The battery removal is a key bonus and %charge remaining is very useful to know Anyway main point the light is v good - provides a central beam allowing cycling at pace in total darkness

Great Light so far! Bright at night. Good battery . Looks slick on my trek. Overall very happy with it. Excellent light!!! Would recommend

Man.... This cycling light smashes all the other lights I've ever used. superior performance. Super quality built and I love the Garmin mount and I think it’s a great bang for the buck. I'm purchasing one for all my other bicycles!

Well built, bright light, solid beam and sturdy design

Yep it’s bright. Narrow beam. But good. Recommended.