1. Set the time to night, in my case I was at 10:30 PM
2. Grab many chemlights of all colors
3. Go to a dark area, preferably away from existing sources of light(towns,bases)
4. Place 4 chemlights of each color in a row, you'll see that the red and green lights are dimmer than the others.
5. Place much more chemlights of all colors, you'll notice the popping effect and how much green and red lights are dim and weak compared to the yellow and blue lights.