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  2. T5 retrofit conversion - Wikipedia

    en.wikipedia.org/wiki/T5_retrofit_conversion

    T5 retrofit conversion can maintain existing lighting levels with the higher efficiency of the T5 lamp. However, with kits that operates the lamp on the existing magnetic ballast, the efficiency drops and the lamp life is considerably shortened, as T5 lamps aren't designed to be operated on mains frequency but only on high frequency.

  3. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    These lamps are used for fluorescence effects where less visible light is ideal. 09 N/A Sun-tanning lamps: These lamps produce wide or narrow band UV-B radiation 10 BL Black-Light lamps: Black light lamps give off long-wave UV-A radiation of around 350-400 nm. They are often used to attract insects to traps.

  4. LED tube - Wikipedia

    en.wikipedia.org/wiki/LED_tube

    They mainly comply with types 3 and 4 above: they are delivered as part of a lighting fixture with external control electronics, or they require a T5 fixture with electronic ballast. The LED tube standard EN 62776 is based on the international standard IEC 62776 [2] (Double-capped LED lamps designed to retrofit linear fluorescent lamps ...

  5. Volkswagen Type 2 - Wikipedia

    en.wikipedia.org/wiki/Volkswagen_Type_2

    The Volkswagen Transporter, initially the Type 2, [2] is a range of light commercial vehicles, built as vans, pickups, and cab-and-chassis variants, introduced in 1950 by the German automaker Volkswagen as their second mass-production light motor vehicle series, and inspired by an idea and request from then-Netherlands-VW-importer Ben Pon.

  6. Wedge base - Wikipedia

    en.wikipedia.org/wiki/Wedge_base

    A small resistor may also be contained in the base of older two-volt LED colors (red, orange, yellow) when in a mixed-color set, so that they match the three volts needed by the newer colors (blue, deep green, purple, white), however other manufacturers only change the value of the resistor that is a part of the cord set itself.

  7. Light-emitting diode physics - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode_physics

    The wavelength of the light emitted is a function of the band gap of the semiconductor material used; materials such as gallium arsenide, and others, with various trace doping elements, are used to produce different colors of light. Another type of LED uses a quantum dot which can have its properties and wavelength adjusted by its size. Light ...