Short but thicker size makes it perfectly suitable for helmet use. Just don't make the same mistake as I did and make sure to install it at the front of your helmet for a good range of motion. The included diffuser is very useful for when I use it for Onewheel since you want to get as wide of a view as possible. USB C is a thankful addition. Battery life is great for my use. Great purchase that you won't regret.
Also, if you need help from their team, they're just great and seem to really care about helping you.
I ride almost every night for about 15 to 20 miles on roads, and high have lights mounted on my Kaly which were great but didn’t really get over all the little bumps and hills mountain a SL 1000 on my helmet, and wow what a difference. Gotta look away from cars though.
Lotta light from a small light.
Love the bright lights, and the incredible customer service.