Rear safety light  for Busa?


Hello Guys. I saw a bike the other night with a single, very bright yellow(halogen?) light that was somewhere by the brakelight. It was very small, like a tiny l.e.d. or Xmas light. Does anyone know what it was and where you could get one? I think its a great idea, since it definitely catches your eye if you are a rear car driver. Thanks if u can help :newbie: