Question

 What Are Those Little Blue Lights Under the Traffic Lights in Central Florida?

Answer According to Orlando’s Wesh TV2, “Little blue lights on traffic signals alert authorities from all angles that the signal below it has turned red.”
http://answers.yahoo.com/question/index?qid=20130329141104AAfezo4

Top Q&A For: What Are Those Little Blue Lights Under the Tra...

What is the blue LED light above the traffic lights?

A blue LED light above a traffic light is there to help police catch drivers who run red lights. Called a "red light confirmation light" or "tattletale light," the LED turns on when the stoplight t... Read More »
http://www.answerbag.com/q_view/2449418

Do plants grow under blue lights?

Blue light is visible energy that can be captured by plant pigments (chlorophyll and carotenoids). The blue light energy permits chlorophyll to split water and capture active electrons. These energ... Read More »
http://www.answerbag.com/q_view/2393189

Why do police cars use red& blue lights?

Police cars use red and blue lights to alert other drivers. Red lights indicate there is an emergency and provides a warning. Blue lights signal that a police car is approaching. Police cars have l... Read More »
http://www.answerbag.com/q_view/2097904

Who first used blue lights on police cars?

It is hard to say when and where blue police patrol car lights were first used; they are still not used by every police department. The color blue has been used to identify police around the world ... Read More »
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