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  2. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    Close-up image of a surface-mount LED Close-up of an LED with the voltage being increased and decreased to show a detailed view of its operation A bulb-shaped modern retrofit LED lamp with aluminum heat sink, a light diffusing dome and E27 screw base, using a built-in power supply working on mains voltage

  3. Recessed light - Wikipedia

    en.wikipedia.org/wiki/Recessed_light

    Recessed lighting styles have evolved with more manufacturers creating quality trims for a variety of applications. Recessed lighting trim usually comes in the standard baffle in black or white, which is the most popular. [citation needed] They are made to absorb extra light and create a crisp architectural appearance.

  4. Sustainable refurbishment - Wikipedia

    en.wikipedia.org/wiki/Sustainable_refurbishment

    Sustainable refurbishment describes working on existing buildings to improve their environmental performance using sustainable methods and materials. A refurbishment or retrofit is defined as: "any work to a building over and above maintenance to change its capacity, function or performance' in other words, any intervention to adjust, reuse, or upgrade a building to suit new conditions or ...

  5. Headlamp - Wikipedia

    en.wikipedia.org/wiki/Headlamp

    A manual adjustment was provided but once it was to the end of its travel the system required refilling with fluid or replacement of the tubes and dashpots. [ citation needed ] Citroën SM non-US market vehicles were equipped with heating of the headlamp cover glasses, this heat supplied by ducts carrying warm air from the radiator exhaust to ...

  6. Deep energy retrofit - Wikipedia

    en.wikipedia.org/wiki/Deep_energy_retrofit

    A deep energy retrofit (DER) is an energy conservation project in an existing building that leads to an overall improvement in building performance.While there is no exact definition for a deep energy retrofit, it can be characterized as a whole-building analysis and construction process that aims to reduce on-site energy use by 50% or more using existing technologies, materials and ...

  7. Seismic retrofit - Wikipedia

    en.wikipedia.org/wiki/Seismic_retrofit

    An extension of the same idea for seismic retrofitting has been experimentally tested for seismic retrofit of California bridges under a Caltrans research project [12] and for seismic retrofit of non-ductile reinforced concrete frames. [13] Pre-stressing can increase the capacity of structural elements such as beam, column and beam-column joints.

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