Red light is the most effective colored light that deters most roaches.
What Color Light Do Roaches Hate?
Red light repels the greatest number of cockroaches. Second to that is Green then comes the rest – white, then yellow and blue.
Insects are more attracted to yellow light as compared to the rest.
Do LED Lights attract Cockroaches?
To be honest, bulbs that emit more short wavelengths of light (cool bluish/white color) will attract more bugs. LED lights produce little or almost no UV light and a minuscule amount of heat, which makes them far less attractive to bugs – so long as they emit longer wavelengths of light.
ALSO SEE: Are Roaches attracted to Light or the Dark?
Does Blue Light attract Roaches?
Generally speaking, insects see 3 types of light – Green, Blue, Ultraviolet (UV). Bluish lights or Bright White (mercury vapor, white florescent and white incandescent) are most attractive to bugs.
Orange (sodium vapor, halogen, dichroic yellow), Pinkish, or Yellowish are the least attractive to bugs.