Traffic light cameras?

Hi I know that there are traffic light cams that only catch you jumping the light. But there are also some at a traffic light that catch you jumping the light and speeding. How do you tell the difference between these as they both look alike. They are both the more rectangular shape camera that are at traffic lights.Traffic light cameras?
If you don't do either its never going to be a problem. :)Traffic light cameras?
They are identical. The only difference is in the way that they are triggered. Most do both.



As above, the only sure way not to find out which they are - the hard way - is not to speed through the lights when they are green or go through them at any speed when they are red. It might also be a good idea not to do this, even if the lights don't have a camera watching over them.Traffic light cameras?
You don't need to know the difference if you don't break the law and stop at traffic lights and keep to the speed limit.
Anyone who is traveling over the speed limit going through traffic lights shouldn't be on the road. They are a danger to themselves and to others