<p>A light fixture is an electrical device used to create artificial light and/or illumination. A luminaire is a lighting fixture complete with the light source or lamp, the reflector for directing the light, an aperture (with or without a lens), the outer shell or housing for lamp alignment and protection, an electrical ballast, if required, and connection to a power source. A wide variety of special light fixtures are created for use in the automotive industry, aerospace, marine and medicine. The use of the word lamp to describe light fixtures is common slang for an all-in-one luminary unit. In proper terminology, a lamp is the light source</p>