Well, the lights are nice enough that the 2 I bought off ebay for my kids got stolen off their bikes at the school bike rack the last couple of days (daughter's got taken with its bracket on Friday, my son's got taken yesterday, just the light, they left the bracket).

The 2 came with taillights ($8.50 per pair, shipped), and I tried using one of the tail lights on a bike I had w/ no lights, and it just fell apart unprovoked.