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2. Holiday lighting technology - Wikipedia

   en.wikipedia.org/wiki/Holiday_lighting_technology

   The only types of lights used are mini, C7, and C9. Special wiring was to be installed to light the 125-foot-tall (38 m) pine tree with C9 bulbs for the 2007 display. Miniature lights first came in sets of 35 (3.5 volts per bulb), and sometimes smaller sets of 20 (6 volts per bulb).

3. UV-B lamps - Wikipedia

   en.wikipedia.org/wiki/UV-B_lamps

    Narrowband UVB lamps, on the other hand, emit light in the 311-312 nanometer range. These lamps require a dose of 2 joules per square centimeter to achieve the same therapeutic effect as a 293 nanometer lamp, which is 20 times higher.

4. Tanning lamp - Wikipedia

   en.wikipedia.org/wiki/Tanning_lamp

   Tanning lamps (sometimes called tanning bulbs in the United States or tanning tubes in Europe) are the part of a tanning bed, booth or other tanning device which produces ultraviolet light used for indoor tanning. There are hundreds of different kinds of tanning lamps most of which can be classified in two basic groups: low pressure and high ...

5. Light fixture - Wikipedia

   en.wikipedia.org/wiki/Light_fixture

   Low-bay lighting with sphere outline. Chandelier – Branched ornamental light fixture designed to be mounted on ceilings; Pendant light – suspended from the ceiling with a chain or pipe. Sconce – provide up or down lights; can be used to illuminate artwork, architectural details; commonly used in hallways or as an alternative to overhead ...

6. Christmas lights - Wikipedia

   en.wikipedia.org/wiki/Christmas_lights

   While he was vice president of the Edison Electric Light Company, he had Christmas tree light bulbs especially made for him. He proudly displayed his Christmas tree, which was hand-wired with 80 red, white and blue electric incandescent light bulbs the size of walnuts, in December 1882 at his home near Fifth Avenue in New York City.

7. Twinkle bulb - Wikipedia

   en.wikipedia.org/wiki/Twinkle_bulb

   The advent of miniature lights found the adaptation of twinkle bulbs as flasher bulbs, which interrupt the entire series circuit of anywhere from 10 to 50 bulbs when powered from 120-volt mains electricity (in North America). These are easily recognizable by their red tips on an otherwise unpainted clear white bulb, and are available in the ...