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These lights usually include "cool white" and "pure white" labels, and give off an almost-blue white light. Colored lights: Whether one solid color or multi-colored, these lights are fun, vibrant ...
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SHOP: 43 unique finds that'll bring your room to life: Note: The slideshow above reflects prices displayed on retailer sites as of the publishing date of this post.
These lamps are used for fluorescence effects where less visible light is ideal. 09 N/A Sun-tanning lamps: These lamps produce wide or narrow band UV-B radiation 10 BL Black-Light lamps: Black light lamps give off long-wave UV-A radiation of around 350-400 nm. They are often used to attract insects to traps.
Compared to a theoretical 100%-efficient lamp (680 lm/W), CFL lamps have lighting efficiency ranges of 7–10%, [39] versus 1.5–2.5% [40] for incandescents. [41] Because of their higher efficacy, CFLs use between one-seventh and one-third of the power of equivalent incandescent lamps. [38]
Neon lamps are used both to produce light as indicators and for special-purpose illumination, and also as circuit elements displaying negative resistance. Addition of a trigger electrode to a device allowed the glow discharge to be initiated by an external control circuit; Bell Laboratories developed a "trigger tube" cold-cathode device in 1936 ...
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