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2. 50 Real Photos That Look Like They’re Straight Out Of ... - AOL

   www.aol.com/100-real-photos-look-straight...

   #41 My Windowless Classroom Has Fake Sky Panels In Place Of The Plastic Covers On The Fluorescent Lights Image credits: scapegoat827 #42 This Place Felt Like Being Alone In A Video Game Waiting Lobby

3. Fluorescent lamps and health - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamps_and_health

   An open (single envelope) CFL [12] An encapsulated/closed (double envelope) CFL. Some fluorescent lamps emit ultraviolet radiation. [citation needed] The Health Protection Agency of the United Kingdom has conducted research concluding that exposure to open (single envelope) compact fluorescent lamps (CFLs) for over 1 hour per day at a distance of less than 30 cm can exceed guideline levels as ...

4. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   The spectrum of light emitted from a fluorescent lamp is the combination of light directly emitted by the mercury vapor, and light emitted by the phosphorescent coating. The spectral lines from the mercury emission and the phosphorescence effect give a combined spectral distribution of light that is different from those produced by incandescent ...

5. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   Cross section of a typical fluorescent lamp with and without a reflector. Some lamps have an internal opaque reflector. Coverage of the reflector ranges from 120° to 310° of the lamp's circumference. Reflector lamps are used when light is only desired to be emitted in a single direction, or when an application requires the maximum amount of ...

6. 21 Vintage Photos of Christmas Window Displays From the Last ...

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   Take a trip down memory lane with by looking at these incredible photos of Christmas window displays from the last 100 years,

7. Fluorescence - Wikipedia

   en.wikipedia.org/wiki/Fluorescence

   Its most common everyday application is in (gas-discharge) fluorescent lamps and LED lamps, in which fluorescent coatings convert UV or blue light into longer-wavelengths resulting in white light which can even appear indistinguishable from that of the traditional but energy-inefficient incandescent lamp. Fluorescence also occurs frequently in ...