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  2. NEMA wattage label - Wikipedia

    en.wikipedia.org/wiki/NEMA_wattage_label

    A sticker that is half-red and half-white indicates a pulse start metal halide lamp (PSMH). Green is also used on HPS units in Canada. Gray indicates that the fixture is of an LED type. In addition to being colour-coded, newer NEMA stickers also state the lamp type abbreviation just below the lamp's wattage (e.g. HPS, LED).

  3. ISO standards for trailer connectors - Wikipedia

    en.wikipedia.org/wiki/ISO_standards_for_trailer...

    +12V from battery or Rear fog lights: Blue: 1.5: 15: 3 31: Ground connected to chassis: White or Grey: 2.5: 13: 4 R: Right turn signal: Green: 1.5: 15: 5 58R: Tail lights, clearance lights/outline marker lights and registration plate light right side: Brown: 1.5: 15: 6 54: Stop lights: Red: 1.5: 15: 7 58L: Tail lights, clearance lights/outline ...

  4. Prism lighting - Wikipedia

    en.wikipedia.org/wiki/Prism_lighting

    Prism lighting is the use of prisms to improve the distribution of light in a space. It is usually used to distribute daylight , and is a form of anidolic lighting . Prism lighting was popular from its introduction in the 1890s through to the 1930s, when cheap electric lights became commonplace and prism lighting became unfashionable.

  5. Anderson Powerpole - Wikipedia

    en.wikipedia.org/wiki/Anderson_Powerpole

    This is an accepted version of this page This is the latest accepted revision, reviewed on 4 October 2024. Family of electrical connectors Anderson Powerpole Anderson Powerpole 15/30/45 ampere housings and contacts (front view) Type Electrical connector The Anderson Powerpole is a family of electrical connectors by Anderson Power Products (APP), although plug compatible connectors are now ...

  6. Pilot light - Wikipedia

    en.wikipedia.org/wiki/Pilot_light

    The appliance efficiency of a gas-fired balanced flue local space heater in pilot light mode is almost equal with the appliance efficiency measured at the reduced power of the appliance, which efficiency is between 65–95% based on the low calorific value of the consumed gas, making part of the pilot light's energy consumption into useful heat.

  7. Infrared heater - Wikipedia

    en.wikipedia.org/wiki/Infrared_heater

    Infrared heaters can be operated in vacuum or atmosphere. One classification of infrared heaters is by the wavelength bands of infrared emission. Short wave or near infrared for the range from 750 nm to 1.4 μm; these emitters are also named "bright" because still some visible light is emitted; Medium infrared for the range between 1.4 μm and ...

  8. Transom (architecture) - Wikipedia

    en.wikipedia.org/wiki/Transom_(architecture)

    In architecture, a transom is a transverse horizontal structural beam or bar, or a crosspiece separating a door from a window above it. This contrasts with a mullion, a vertical structural member. [1] Transom or transom window is also the customary U.S. word used for a transom light, the window over this crosspiece.

  9. Street light - Wikipedia

    en.wikipedia.org/wiki/Street_light

    A street light, light pole, lamp pole, lamppost, streetlamp, light standard, or lamp standard is a raised source of light on the edge of a road or path. Similar lights may be found on a railway platform .