I had Cateye Orbit spoke lights, but as mentioned above, they just collect dirt, so need regular cleaning. After one of these lights stopped working, I just stopped using them. I also tried the 3M spoke reflectors, but stopped using them for the same reason: fed up with cleaning them. Both of these really enhance your side-on visibility, which is always good, but you must be prepared to spend more time cleaning. A few years ago, I tried the valve cap lights too, the ones that automatically turn on with motion, pretty cool I thought, that is until they stopped turning on with motion.