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2. High-CRI LED lighting - Wikipedia

   en.wikipedia.org/wiki/High-CRI_LED_lighting

   The "warmer" light colors, such as a 2700 K incandescent bulb or a 1700 K candlelight, are more easily reproduced than more neutral white lights, such as 4800 K direct sunlight, and thus usually have higher CRI ratings in alternative light sources such as CFL and LED bulbs; "warmer" light (redder) naturally renders colors less accurately.

3. Color temperature - Wikipedia

   en.wikipedia.org/wiki/Color_temperature

   The house above appears a light cream during midday, but seems to be bluish white here in the dim light before full sunrise. Note the color temperature of the sunrise in the background. Video camera operators can white-balance objects that are not white, downplaying the color of the object used for white-balancing. For instance, they can bring ...

4. Template:Color temperature white points - Wikipedia

   en.wikipedia.org/wiki/Template:Color_temperature...

   cool white fluorescent F3 0.40910: 0.39430 0.41761: 0.38324 3450 white fluorescent F4 0.44018: 0.40329 0.44920: 0.39074 2940 warm white fluorescent F5 0.31379: 0.34531 0.31975: 0.34246 6350 daylight fluorescent F6 0.37790: 0.38835 0.38660: 0.37847 4150 light white fluorescent F7 0.31292: 0.32933 0.31569: 0.32960 6500 D65 simulator, daylight ...

5. LED lamp - Wikipedia

   en.wikipedia.org/wiki/LED_lamp

   A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010: floodlight fixtures (left), reading light (center), household lamps (center right and bottom), and low-power accent light (right) applications An 80W Chips on board (COB) LED module from an industrial light luminaire, thermally ...

6. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   A final class of white LED with mixed light is dim-to-warm. These are ordinary 2700K white LED bulbs with a small red LED that turns on when the bulb is dimmed. Doing so makes the color warmer, emulating an incandescent light bulb. [39]

7. Holiday lighting technology - Wikipedia

   en.wikipedia.org/wiki/Holiday_lighting_technology

   Outdoor-only bulbs are designated C 9 + 1 ⁄ 4 (1 + 5 ⁄ 32 in, or 29 mm), and have a similar blunt shape as the C 7 + 1 ⁄ 2, but use an E17 "intermediate" base. Some modern versions of these strings are now listed for indoor and outdoor use. These bulbs are rated at about seven watts each, and are available in a globe shape, designated G40 ...