Sette ST-316 Glo Safety Light
Guaranteed to be the brightest rear safety light in Sette's illustrious product line, the ST-316 Glo light will keep you visible for up to a mile. Its compact design and belt clip feature make it easy to take on and off in a hurry. Don't be caught in the dark without the proper protection, let Sette be your go-to brand for all of your safety needs.
Very bright and attention-getting. Very well could save your a** during dark or dim conditions. Sometimes I use it during the day in sketchy sections of road or when insane drivers seem to be out in force. This is so cheap, and so light weight, there's no legitimate reason not to carry one on your bike all the time. Haven't used it in sustained pouring rain, but it stood up to mild wet conditions w/out a problem. The push-button switch has a crisp, definite click.
This light has served me well for a few years now. Battery life is surprisingly long.
I've bought a few of these and they are noticeable and bright -- bright enough that I've gotten compliments from other cyclists at intersections. I also have a more expensive Planet Bike version and I prefer this Sette one over the Planet Bike one. The on/off button is easier to use on this. For the price, it is a great deal. As another reviewer noted, it can stop working if you drop it. But in one case, I managed to revive it by opening it up and re-bending one of the metal battery contact points back into place, which had bent out of place during the fall, so that it was no longer in contact with the battery.
I have the Planet Bike Turbo flash on one of my bikes and really like it. I got this for another bike, because I could get 3 of these for the price of one Turbo Flash. The mount is not as robust, but the light is bright, and I have used it for at least 3 months with no problem.
I decided to try this light because it was tired or transferring one light to another. It worked great and was nice and bright and was happy with the purchase. Then when pulling it out of my pocket, it slipped out of my hand and quit working completely. I tried new batteries and everything else. I had an department store rear light fall off my bike when I was moving and explode on the street and it still works. Was happy for a bit with it. Now all that is good on it is the batteries.