Our lights should fit most wheels with wire spokes 16" diameter and larger, and we have seen some wheelchair installations. Unfortunately, this means that our lights to not work on many power wheelchairs.
A potential issue is that most wheelchairs don't go the 8-10mph necessary for patterns (hearts, spiders, etc) to be visible. However, our products will still output the same amount of light (and fun) even if the light is still, so they are great for visibility. We hope that helps!