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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 for Special Surgery - Wikipedia

   en.wikipedia.org/wiki/Hospital_for_Special_Surgery

   Hospital for Special Surgery (HSS) is an academic medical center and research institution headquartered in New York City that specializes in the treatment of orthopedic and rheumatologic conditions. Its main campus is located at 535 East 70th Street in Manhattan and there are locations in New York , New Jersey , Connecticut , and Florida .

4. Phase-out of incandescent light bulbs - Wikipedia

   en.wikipedia.org/wiki/Phase-out_of_incandescent...

   60 W incandescent light bulb with energy efficiency class E Equivalent 42 W halogen incandescent light bulb with efficiency class C Compact fluorescent lamp LED lamp. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy-efficient alternatives.

5. 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 ...

6. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   Metal-halide lamp. Metal halide lamp bulb (type /O with arc tube shield) A common spectrum of metal halide lamps in North America. Metal halide floodlights at a baseball field. Metal halide lamps were invented by Charles Proteus Steinmetz in 1912 and are now used in almost every city in the world. A metal-halide lamp is an electrical lamp that ...

7. High-intensity discharge lamp - Wikipedia

   en.wikipedia.org/wiki/High-intensity_discharge_lamp

   High-intensity discharge lamps are a type of arc lamp . Brand new high-intensity discharge lamps make more visible light per unit of electric power consumed than fluorescent and incandescent lamps, since a greater proportion of their radiation is visible light in contrast to infrared. However, the lumen output of HID lighting can deteriorate by ...