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  2. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    Japanese color code Numeric color code Alphabetic color code Color Approximate CRI Color temperature (K) L-EDL 27 N/A Deluxe Extra Warm White ≈95 2700 N/A N/A SW GE Soft White (Lower-CRI WWX) ≈77 3000 N/A 32 WWX 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

  3. Holiday lighting technology - Wikipedia

    en.wikipedia.org/wiki/Holiday_lighting_technology

    For public displays large C7 bulbs are generally used, but by the 1990s light sculptures were being made in smaller form with miniature lights for home use. Consumer types now tend to come with a plastic sheet backing printed in the proper design, and in the 2000s now with nearly photographic quality graphics and usually on a holographic ...

  4. Compact fluorescent lamp - Wikipedia

    en.wikipedia.org/wiki/Compact_fluorescent_lamp

    Replacement of magnetic ballasts with electronic ballasts has removed most of the flickering and slow starting traditionally associated with fluorescent lighting, and has allowed the development of smaller lamps directly interchangeable with more sizes of incandescent light bulb.

  5. Fluorescent lamp - Wikipedia

    en.wikipedia.org/wiki/Fluorescent_lamp

    The color of the light output can be adjusted by altering the ratio of the blue-emitting antimony dopant and orange-emitting manganese dopant. The color rendering ability of these older-style lamps is quite poor. Halophosphate phosphors were invented by A. H. McKeag et al. in 1942. "Natural sunshine" fluorescent light: Peaks with stars are ...

  6. Edison light bulb - Wikipedia

    en.wikipedia.org/wiki/Edison_light_bulb

    Most of the bulbs in circulation are reproductions of the wound filament bulbs made popular by Edison Electric Light Company at the turn of the 20th century. They are easily identified by the long and complicated windings of their internal filaments, and by the very warm-yellow glow of the light they produce (many of the bulbs emit light at a ...

  7. C7 - Wikipedia

    en.wikipedia.org/wiki/C7

    Nokia C7-00, a touch screen mobile from Nokia; VIA C7, an IA-32 central processing unit by VIA Technologies; C7, an incandescent light bulb of the size typically used in nightlights and Christmas lighting usually 2 and 1/8 inches Length, 7/8 inch Width, 5 watts; IEC 60320 C7, an unpolarized, two pole, mains voltage connector

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