Color and Mood. ENERGY STAR certified bulbs are available in a wide variety of shades of white light, ranging from yellowish, to white, to bluish white light, which allows you to customize the mood of your space.
The eye detects visible light, the nerves detect infrared or heat and the skin is sensitive to ultraviolet ( tanning and sunburn ) and the lens of the eye develops cataracts in response to UV also. a human body can detect ionizing electromagnetic radiation, if he can see what his geiger counter is reading.
Electromagnetic radiation at wavelengths which the human eye can see, this radiation is perceived as colors ranging from red to violet. Microwaves Electromagnetic radiation which has a longer wavelength than visible light. Microwaves can be used to study the Universe, communicate with satellites in Earth orbit, and cook popcorn.