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2. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   Circular 32W and 40W T10 lamps (Older versions of the 32W and 40W T9 lamps) T12 T38 1 + 1 ⁄ 2: 38.1 G13 bi-pin; Fa8 single-pin; R17d recessed double contact; One of the first diameters of fluorescent lamps, with the 15W T12 and 20W T12 having been introduced in 1938. These aren't as efficient as newer lamp options. [6] T17 2 + 1 ⁄ 8: 54 G20 ...

3. Color temperature - Wikipedia

   en.wikipedia.org/wiki/Color_temperature

   "Soft white" compact fluorescent and LED lamps 3000 K Warm white compact fluorescent and LED lamps 3200 K Studio lamps, photofloods, etc. 3350 K Studio "CP" light 5000 K Horizon daylight, Tubular fluorescent lamps or cool white/daylight compact fluorescent lamps (CFL) 5500–6000 K Vertical daylight, electronic flash: 6200 K Xenon short-arc ...

4. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   A typical "cool white" fluorescent lamp utilizing two rare-earth-doped phosphors, Tb 3+, Ce 3+:LaPO 4 for green and blue emission and Eu:Y 2 O 3 for red. For an explanation of the origin of the individual peaks click on the image. Several of the spectral peaks are directly generated from the mercury arc.

5. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.

6. Cold cathode - Wikipedia

   en.wikipedia.org/wiki/Cold_cathode

   Discharge tubes with hot cathodes have an envelope filled with low-pressure gas and containing two electrodes. Hot cathode devices include common vacuum tubes, fluorescent lamps, high-pressure discharge lamps and vacuum fluorescent displays. The surface of cold cathodes can emit secondary electrons at a ratio greater than unity (breakdown). An ...

7. Blacklight paint - Wikipedia

   en.wikipedia.org/wiki/Blacklight_paint

   Some coupons and tickets use colorful black light inks. On many German locomotives the control panel labels were printed with black light paint and a black light source was provided in the cab. This left the driver with full night vision while still enabling him to distinguish between the different switches and levers to operate his locomotive.