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2. These are the best — and worst — lightbulbs for the planet

   www.aol.com/lifestyle/best-worst-lightbulbs...

   But anytime a bulb is used for light and not heat, these bulbs are a poor choice. They also have a short life-span — 1,000 hours of light as compared to, say, 10,000 for CFLs and 50,000 for LEDs .

3. Black Friday isn't over at Walmart: Here are the 10 best ...

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   As you're loading your Walmart cart, here are the 10 most popular deals our AOL readers can't stop buying. Quick Overview 2022 Apple 10.9-inch iPad (10th Generation) for $259 ($190 off)

4. Blue light spectrum - Wikipedia

   en.wikipedia.org/wiki/Blue_light_spectrum

   Studies have been conducted on blue light filtering eyeglasses, [5] [27] which uses special blue light blocking lenses for eye protection against blue light. [ 27 ] [ 28 ] All visible light wavelengths can be transmitted through the spectacle lens, [ 28 ] but some portions of the blue-violet light spectrum are selectively attenuated by coating ...

5. These are the 20 best Cyber Monday deals under $100 at Walmart

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   As you're shopping for the best Walmart Cyber Monday deals, here are some of the best we've found under $100, including a 22-piece cookware set from T-Fal that's less than $50 and $13 Wrangler ...

6. Biological effects of high-energy visible light - Wikipedia

   en.wikipedia.org/wiki/Biological_effects_of_high...

   Blue light, a type of high-energy light, is part of the visible light spectrum. High-energy visible light (HEV light) is short-wave light in the violet/blue band from 400 to 450 nm in the visible spectrum, which has a number of purported negative biological effects, namely on circadian rhythm and retinal health (blue-light hazard), which can lead to age-related macular degeneration.

7. All of the best Black Friday deals: Amazon, Walmart, Wayfair ...

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   Updated: Black Friday's best weekend deals are here on Apple AirPods and iPads, Samsung TVs, Bissell vacuums, KitchenAid and Ninja small appliances, gifts for men, women and kids — and more.