The next time you stop at a junction, take a good look at the bright red light. If it looks like a honeycomb of vivid red dots, you’re enjoying LED traffic lights. Cities and towns around the globe have been methodically substituting their old incandescent traffic signals with the more power efficient LED since the mid 1990s. Such types of traffic signals have numerous benefits over incandescent models, but the 3 prime benefits are enhanced visibility, longer shelf life & lower energy expenses.
The advance of commercially possible LED...