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  2. High-CRI LED lighting - Wikipedia

    en.wikipedia.org/wiki/High-CRI_LED_lighting

    A CRI of 100 represents the maximum possible value. Lower CRI values indicate that some colors appear unnatural. Incandescent lamps have a CRI above 95. Cool white fluorescent lamps have a CRI of 62, however fluorescent lamps containing rare-earth phosphors are available with CRI values of 80 and above. [2]

  3. Compact fluorescent lamp - Wikipedia

    en.wikipedia.org/wiki/Compact_fluorescent_lamp

    Philips Lighting ceased research on compact fluorescents in 2008 and began devoting the bulk of its research and development budget to solid-state lighting such as LED lighting. [17] The rise of LED lighting, however, significantly affected CFL sales and production. As a result of decreasing cost and better features, customers increasingly ...

  4. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    Deluxe Warm White ≈87 3000 N/A N/A WX Sylvania White Deluxe ≈85 3500 N/A 79 N Natural ≈90 3600 N/A 34 N/A Deluxe White ≈85 3850 W-SDL 38 CWX Deluxe Cool White/Kolor-rite ≈90 4000 N/A N/A C41 GE Cool White Utility (Enhanced CWX) ≈87 4100 N-SDL, N-EDL N/A C50/DSGN50 GE Chroma 50/Philips Colortone 50/Sylvania Design 50 ≈90-99 5000

  5. Standard illuminant - Wikipedia

    en.wikipedia.org/wiki/Standard_illuminant

    Publication 15:2018 introduces new illuminants for different white LED types with CCTs ranging from approx. 2700 K to 6600 K. LED-B1 through B5 defines LEDs with phosphor-converted blue light. LED-BH1 defines a blend of phosphor-converted blue and a red LED. LED-RGB1 defines the white light produced by a tricolor LED mix.

  6. When and what is the winter solstice? Things to know about ...

    www.aol.com/news/winter-solstice-things-know...

    The days are short and the nights are long. That can only mean one thing: The winter solstice is coming. The first day of winter for the northern hemisphere of Earth will begin on Dec. 21 at ...

  7. Mom, 12-year-old daughter hit during brazen Bronx shooting as ...

    www.aol.com/six-shot-including-12-old-235130118.html

    The mom was shot in the stomach when two gunmen opened fire on their rivals outside G&W Grocery on White Plains Road near East 211th Street around 4:50 p.m. in Gunhill, Interim Chief of Department ...

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