Using this sensor you can program a robot searching or fleeing light or even a robot reacts to light flashes. It is also possible that the robot reacts to certain colors by placing a color filter in front of the sensor!
This sensor responds only to visible light and does not reflect other wavelengths such as ultraviolet or infrared.
This sensor requires a programming kit to be used. This programming kit is included into the Protobot starter kit sold on this site.