Cygolite Hypershot 350 & 250 Lumen Bicycle Taillight Models–7 Night & Daytime Modes–User Tunable Flash Speeds- Small & Durable–IP64 WaterResistant–Secure Hard Mount–USB Recharge–Great For Busy Streets

One of the best rear lights I have come across ,great for your safety for daylight riding. Be careful riding at night it is so bright ,it has 7 modes that are adjustable by the speed it flashes. Two modes STEADY and BZZZ you can adjust the brightness. Amazing well made rear bike light which I highly RECOMMEND.

Awesome!

Excellent rear light - bright isn’t the word … SUPER BRIGHTImported this into the UK as not available to buy here .Worth every pennyHighly recommend

This is the brightest rear light I've seen. It isn't just the 350 lumens number to look at, the spread and patterns of the leds emit a solid deep red light that can be seen from further away and it stands out more in busy city environments. It can be seen in the day easily and can be overpowering at night but that's what I wanted. The bracket is quality and doesn't slip or move and the quick release is easy but secure.

I wanted a bike rear lamp that was powerful enough to be seen in daylight in Northern Europe as I have to traverse a few high speed road on my bike. Even in quite bright sunlight it can be seen from about 200m on max power. What I also like about it is that unlike some competitors lamps it produces a widish beam so even if the lamp is not 100 percent perfectly aligned the beam can still be seen from behind the bikes centreline. Cygolite make an even more powerful model, but I think that would be best for daylight use only in countries that have very powerful sunlight such as southern Europe. I now have four of these, one on each of my bikes.

Love the strobe setting.

Bright isn't the right word for this. Now nobody can claim they can't see me, even during the day. Luckily a couple of the modes allow you to turn the brightness down, otherwise I'd be causing people to have accidents when I'm cycling in the dark. It really is that bright. Brightest rear bike light I've seen. Perfect for daytime cycling