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  2. Searchlight - Wikipedia

    en.wikipedia.org/wiki/Searchlight

    It concentrates about 13,650,000 lumens from 39 7kW xenon lamps into a beam of about 9,129,000,000 candela. Tribute in Light is an art installation that uses two columns of searchlights to represent the former Twin Towers of the World Trade Center, in remembrance of the September 11 attacks. It is produced annually in Lower Manhattan.

  3. Headlamp - Wikipedia

    en.wikipedia.org/wiki/Headlamp

    The first US halogen headlamp bulb, introduced in 1983, was the HB1/9004. It is a 12.8-volt, transverse dual-filament design that produces 700 lumens on low beam and 1200 lumens on high beam. The 9004 is rated for 65 watts (high beam) and 45 watts (low beam) at 12.8 volts.

  4. Digital light processing - Wikipedia

    en.wikipedia.org/wiki/Digital_Light_Processing

    A three-chip DLP projector uses a prism to split light from the lamp, and each primary color of light is then routed to its own DMD chip, then recombined and routed out through the lens. Three chip systems are found in higher-end home theater projectors, large venue projectors and DLP Cinema projection systems found in digital movie theaters.

  5. List of CRT video projectors - Wikipedia

    en.wikipedia.org/wiki/List_of_CRT_video_projectors

    Two projectors mounted in a special pedestal allowing twice the brightness. One projector can converge on green. ... peak white 300 lumens, all white:260 lumens: VPH ...

  6. Lumen (unit) - Wikipedia

    en.wikipedia.org/wiki/Lumen_(unit)

    The lumen (symbol: lm) is the unit of luminous flux, a measure of the perceived power of visible light emitted by a source, in the International System of Units (SI). Luminous flux differs from power ( radiant flux ), which encompasses all electromagnetic waves emitted, including non-visible ones such as thermal radiation ( infrared ).

  7. A244 torpedo - Wikipedia

    en.wikipedia.org/wiki/A244_torpedo

    The A244/S is an Italian lightweight, fire-and-forget torpedo employed for anti-submarine warfare. It can be launched from surface vessels or aircraft and locates the target using an acoustic seeker. The torpedo body conforms to the NATO 12.75-inch (323.8 mm) standard and is compatible with USN Mark 32 torpedo tubes.

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