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  2. Halogen lamp - Wikipedia

    en.wikipedia.org/wiki/Halogen_lamp

    A halogen lamp (also called tungsten halogen, quartz-halogen, and quartz iodine lamp) is an incandescent lamp consisting of a tungsten filament sealed in a compact transparent envelope that is filled with a mixture of an inert gas and a small amount of a halogen, such as iodine or bromine. The combination of the halogen gas and the tungsten ...

  3. Blue Light Teeth Whitening: Is It Safe, and Does It Work?

    www.healthline.com/.../blue-light-teeth-whitening

    For example, one study published in 2016 found that using a halogen light with a 37.5-percent hydrogen peroxide solution whitened teeth better than going without the light.

  4. Elecromagnetic Hypersensitivity - WebMD

    www.webmd.com/a-to-z-guides/electromagnetic...

    Compact fluorescent, LED, and halogen light bulbs; Laser pointers ... While there’s still debate about the dangers of exposure to electromagnetic fields, medical professionals are increasingly ...

  5. AMD: How Lighting Affects Your Vision - WebMD

    www.webmd.com/eye-health/macular-degeneration/...

    Halogen bulbs may grow hot, so you shouldn’t use them for too long, especially when close to the eyes. Fluorescent light and CFLs produce less heat, use less energy, and are usually recommended ...

  6. Halogen - Wikipedia

    en.wikipedia.org/wiki/Halogen

    In the modern IUPAC nomenclature, this group is known as group 17. [5] The word "halogen" means "salt former" or "salt maker". When halogens react with metals, they produce a wide range of salts, including calcium fluoride, sodium chloride (common table salt), silver bromide and potassium iodide.

  7. Pictures: Devices that Emit Blue Light - WebMD

    www.webmd.com/eye-health/ss/slideshow-blue-light...

    An anti-reflective coating on your regular glasses may also lessen blue light and glare. That could ease eyestrain. Try to turn devices off 1-2 hours before bed. If you can’t, switch to night ...

  8. Lupus and Sun Exposure: Side Effects and More - Healthline

    www.healthline.com/health/lupus-sun-exposure

    Takeaway. If you have lupus, sun exposure can trigger symptoms such as skin rashes, itching, burning, joint pain, weakness, and fatigue. In some cases, it can even cause organ damage ...

  9. Red Light at Night: How Does It Affect Your Sleep and Vision?

    www.healthline.com/health/why-not-to-have-red...

    Red light and night vision. The glare from bright white light at night can leave you squinting and straining to see clearly. Red light is non-glaring, so it can help you see better at night. That ...

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