LED traffic signals save money view story
Tuesday, November 30, 2004 James Bruggers - - Louisville Courier-Journal
| Traffic signals that use incandescent bulbs are becoming extinct, as cities and states, including Louisville, Kentucky and Indiana, swap them for a new type of light that saves energy and money — and possibly lives.
The regional switch to signals that use light-emitting diodes, or LEDs, lags behind many cities and states, including Denver, Minneapolis and California.
|
wireless
my file
comments
view story