Internal G-Sensor senses sudden hard braking and causes rapid flashing
7 LED's in a tiny form factor
350 mAh Internal USB Chargeable Battery
Incredibly tiny and efficient, the S1 Rear Light is the perfect solution for those who are looking for a rear light solution without taking precious bike real estate. Crammed with 7 LED's, the S1 also comes equipped with an internal G-Sensor that tracks motion to increase flashing rate when it senses sudden hard braking.
I don't have much of a comment about the light itself. The stock attachment (a rubber strap) broke free on my first ride with the light and it was lost before I ever turned it on. Don't rely on the strap.