Talk About "Hidden" Costs Technically Speaking
Talk About "Hidden" Costs Technically Speaking - Each one of us, at one time or another has either driven or been a passenger in an automobile and experienced our traffic control lighting system. Originally unique, but now part of a global system. Situated at every fully functional traffic light intersection is at least one "Red" light which is timed to turn on and off regularly to "Stop" traffic. It employs a 100 Watt(varies between 90 and 120 Watts)incandescent light bulb. Several years ago, these light bulbs began being replaced with the latest LED(Light Emitting Diode) cluster assemblies, as were the other lamps at the same intersection. The newer Led lamps consumed only 10 Watts to accomplish the same light output(mostly greater). The clincher ! The original incandescent bulb only radiates approximately 10 % of the power consumed in visible light. The other 90 % is radiated as "heat". And with the red filter used on the original assembly to...