Lamp (fixture) in the context of Black light

A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave (UV-A) ultraviolet light and very little visible light. One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV, so the lamp has a dim violet glow when operating. Blacklight lamps which have this filter have a lighting industry designation that includes the letters "BLB". This stands for "blacklight blue". A second type of lamp produces ultraviolet but does not have the filter material, so it produces more visible light and has a blue color when operating. These tubes are made for use in "bug zapper" insect traps, and are identified by the industry designation "BL". This stands for "blacklight".

Blacklight sources may be specially designed fluorescent lamps, mercury-vapor lamps, light-emitting diodes (LEDs), lasers, or incandescent lamps. In medicine, forensics, and some other scientific fields, such a light source is referred to as a Wood's lamp, named after Robert Williams Wood, who invented the original Wood's glass UV filters.

A Tiffany lamp is a type of lamp made of glass and shade designed by Louis Comfort Tiffany or artisans, and made (in originals) in his design studio. The glass in the lampshades is put together with the copper-foil technique instead of leaded, the classic technique for stained-glass windows. Tiffany lamps are considered part of the Art Nouveau movement. Considerable numbers of designs were produced from 1893 onwards.

Due to Tiffany's dominant influence on the style, the term Tiffany lamp or Tiffany-style lamp has been often used to refer to stained-glass, leaded lamps, even those not made by Tiffany Studios.