a tube of plasma and is not dangerous
a type of electric lamp that excites mercury vapor to
a type of luminescent source that makes use of chemical compounds called phosphors
A glass tube filled with a mixture of gases at low pressure. Emits ultra-violet radiation converted to light by the fluorescent coating inside the tube; energy efficient.
Light emitted from a standard fluorescent fixture.
An electric lamp using a phosphor coated glass tube that glows when ions in the tube are excited with high voltage electricity. Much more efficient than incandescent type lamps.
Fluorescent light bulbs are low pressure mercury vapor discharge light sources. The electric discharge generates ultra-violet (UV) energy, which is absorbed by a phosphor and converted to visible light.
The conversion of electric power to visible light by using an electric charge to excite gaseous atoms in a glass tube. These atoms emit ultraviolet radiation that is absorbed by a phosphor coating on the walls of the lamp tube. The phosphor coating produces visible light.
