So when you see white LEDs, such as those in streetlights, they are actually emanating some mixture of the colors red, green and blue ... bright purple light suggests the phosphor layer around ...

For example, green porch lights bring awareness to ... Here's a closer look at the purple porch light meaning. If you ever see a purple porch light, pay attention. It's there to bring awareness ...

Whether green is visible also "depends on what stuff there is in the atmosphere," Courtial said. Particles can scatter blue and purple light, making green light more apparent. Courtial ...

The bright, glowing purple hues oddly pop among the traditional green, yellow and red stoplights ... according to Florida Power & Light. About 10 years ago, most cities in Palm Beach County ...

Such is the case for the sweeping purple and green lights that ... and appears as a streak of mauve-colored light accompanied by distinctive green bands, often referred to as a picket fence.