My wife bought me two of those spoke lights one year for Christmas. One of them didn't survive the rest of winter. The other I still have.

They have to be manually turned on and off. Very easy to forget to turn them on or off. Also, they use button batteries, which are kind of expensive to replace.

I'd much rather have a set of valve-stem lights that are turned on by centrifugal force. Can find them for Shrader pretty easily, but haven't seen them for Presta.

Gonna start searching amazon.com for an amber/yellow pair.