NiteRider Sentry Aero 260 Rear Light

Great bright light with a variety of "light patterns" (blinking, slow blink, constant on ... etc).

Well worth it if you are looking for a product that will last for years to come.

It's a back flasher light. Not a high-tech thing (i.e. like Di2 or carbon wheels). But it works. Easy to mount on my bikes - I have multiple bikes (Cervelo S5 - aero seat post and a Caledonia (standard round 27.2 seat post). Battery lasts a long time. Sometimes I forget to charge it and I am amazed that it lasted for that entire ride. It's really bright. In the morning when it's dark, I turn on the NiteRider Sentry Aero 260 Rear Light, the light hurts my eyes because it's so bright.

I purchased this rear light because I have had good luck with Nite Rider products previously and I needed a new rear light on my commuter bike. I particularly like the fact that it is visible from the sides much more than most lights. Several different blink modes. I like the one that modulates more than strobes. Very secure mount that is still easy to get on and off fast. An added bonus is that it is also daytime visible. I've had it for a couple of months now and use it on my daily commute. It is good for 3-4 hours at least, but I can just bring it in to work and plug it into the USB on my desktop if I need a quick charge.

This is an excellent light, one of the best I've had. It has several settings, from steady to flash and is VERY bright. Great for visibility on those dark commutes. The battery life is good; I have been getting about 6 hours per charge.

It blinks and you see it from most angl

Light is awesome from the view point of visibility. Definitely one of the more visible lights amongst the group I ride.

Has a slight drawback in that you have to remove the entire light when you go to recharge and requires recharging after each ride. Granted our rides are three hours in which it does hold the charge without fail.

This is a super bright blinking light. Even in daylight I cannot even stare at it without getting blind. And its affordable.

Light is great (bright), but tends to need recharging frequently. strap is of poor quality has broken already

Its aero, its bright, its got good side lighting. Wish the battery would hold a longer charge. Running time is as described though.

Very bright and a design that looks good.

Very bright but the battery did not last more than 2 hours.