Now a days, most of the signals are converted. The only ones not converted are owned by the township/borough, or Penndot forgot them. The Ped. Signals are also changed now. The LED upgrades replaces the lamp socket, reflector, and lense. The new module goes where the lense used to be. NYC, New Jersey, and PA are about 75-80% filled with LED traffic signals. Heres a bit more information:
http://auto.howstuffworks.com/question178.htm Ian A.
[This message has been edited by Theelectrikid (edited 10-01-2006).]
