CatEye's Orbit light Kit includes 2 of their bright LED wheel lights that attach to the spokes without tools to increase your visibility from the side. Because they move, they're super noticeable to drivers and from angles where a bicycle headlight and taillight aren't easily visible. The Orbits boast a high-visibility amber LED light, constant and flashing modes and up to 50 hours of run time. They fit from 16- to 27-inch wheels with 32 and 36 spokes.
Run time: 30, 50 hours (constant, flashing)
Batteries: 2 CR2032 per light (included)
31 grams per light