Do satilites have lights on them because I sometimes look up in the sky and see these slowly moving dots or is it the

Question: Do satilites have lights on them because I sometimes look up in the sky and see these slowly moving dots or is it the reflection of the sun
- Keywords:
  light,
  space,
  technology
Asked by Ross0123 to David on 11 Nov 2014.
- David Wilson answered on 11 Nov 2014:
  
  Some do have lights, but your second idea is right-it’s mostly the reflection of the Sun off their solar panels.

Question: Do satilites have lights on them because I sometimes look up in the sky and see these slowly moving dots or is it the reflection of the sun