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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. Hospital Sisters Health System - Wikipedia

   en.wikipedia.org/wiki/Hospital_Sisters_Health_System

   Website. hshs.org. Hospital Sisters Health System, or HSHS, is a non-profit healthcare system headquartered in Springfield, Illinois. HSHS operates a network of 15 hospitals and other healthcare facilities throughout the midwestern U.S. states of Illinois, and Wisconsin. HSHS also operates St. John's College, the oldest Catholic hospital based ...

4. The Best Lighting For Chronic Migraine - Healthline

   www.healthline.com/health/migraine/lightbulbs...

   Green light. Some research in the last decade supports the use of green light for migraine management. One study in 2016 found that green light — as opposed to other colors of light like white ...

5. Lighting Your Workspace and Home When You Have Low Vision - WebMD

   www.webmd.com/eye-health/what-to-know-about...

   You might start by using fluorescent or CFL bulbs to light the entire room and purchasing a small LED task light for your desk or reading spot. Ask your doctor or ophthalmologist if you have more ...

6. Headlamp - Wikipedia

   en.wikipedia.org/wiki/Headlamp

   The bulb's rotative position within the reflector depends on the type of beam pattern to be produced and the traffic directionality of the market for which the headlamp is intended. This system was first used with the tungsten incandescent Bilux/Duplo R2 bulb of 1954, and later with the halogen H4 bulb of 1971. In 1992, US regulations were ...

7. Halogenation - Wikipedia

   en.wikipedia.org/wiki/Halogenation

   Halogenation. In chemistry, halogenation is a chemical reaction which introduces of one or more halogens into a chemical compound. Halide -containing compounds are pervasive, making this type of transformation important, e.g. in the production of polymers, drugs. [1] This kind of conversion is in fact so common that a comprehensive overview is ...