Agree with prior review. Love the Brightness & multi-functions although I usually stick with only a couple as I ride mostly early am & daytime. 2 Straps so It should allow to be used on a Seat Stay too. I've used on Seat post only of several bikes & have switched straps when a larger / aero shaped post is involved......strap is a bit longer than it needs to be but I have not cut. Does NOT move underway. Well made, easy re-charge. Keeps flashing - short, medium or long (century) rides.....never hurts to remember to shut off at stops even short rest stops
I got this tail light and the Lezyne Strip Drive Pro 300 for myself and my wife, who is a fledgling cyclist. I let her pick which one she wanted. I put them side by side in a dimly lit room and we observed them. I bought the Lezyne because it goes to 300 lumens - this only goes to 260 but the unique design looked really intriguing. She chose this one; it was obviously better in every way. Every single flash is 260 lumens, and the deep wedge shape means that unlike a simple strip of lights or whatever, you have this big surface area that shoots an enormous amount of light out to the sides as well. The Lezyne, on the other hand, has the usual strip configuration and only every 3rd or 4th blink gives you the big 300 lumens. Not bad at all but not as good as this. This thing is also light and compact, and attaches easily with a simple rubber thingy. It turns out that it's reliable, charges quickly and we have not discovered a downside to it. I might get one for myself as well, since I absolutely do not skimp on light when having to constantly deal with large numbers of hostile and/or distracted urban drivers. Brighter is better!