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2. Fluorescent-lamp formats - Wikipedia

   en.wikipedia.org/wiki/Fluorescent-lamp_formats

   Typical diameters are T12 or T38 (1+1⁄2 in or 38 mm) for larger, often less efficient lamps, T8 or T26 (1 in or 25 mm) for smaller and often energy-saving lamps, and T5 or T16 (5⁄8 in or 16 mm) for very small lamps, which may even operate from a battery-powered device. Fluorescent tube diameter designation comparison. Designation.

3. Fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Fluorescent_lamp

   A fluorescent lamp tube is filled with a mix of argon, xenon, neon, or krypton, and mercury vapor. The pressure inside the lamp is around 0.3% of atmospheric pressure. [ 27 ] The partial pressure of the mercury vapor alone is about 0.8 Pa (8 millionths of atmospheric pressure), in a T12 40-watt lamp. [ 28 ]

4. Phase-out of incandescent light bulbs - Wikipedia

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

   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. The regulations are generally based on efficiency, rather than use of incandescent technology. Brazil and Venezuela started the phase-out in 2005, [citation ...

5. LED lamp - Wikipedia

   en.wikipedia.org/wiki/LED_lamp

   LED lamp. A 230-volt LED lamp with an E27 base (10 watts, 806 lumens, 3000 Kelvins) Type. Light-emitting diode, light bulb. First production. 1968; 56 years ago (1968) A 230-volt LED filament lamp, with an E27 base. The filaments are visible as the eight yellow vertical lines. An assortment of LED lamps commercially available in 2010 ...

6. GU24 lamp fitting - Wikipedia

   en.wikipedia.org/wiki/GU24_lamp_fitting

   GU24 lamp fitting. A GU24 lamp fitting is a bi-pin connector for compact fluorescent lamps (CFL) or LED lamps that uses a bayonet mount –like twist-lock bi-pin connector instead of the Edison screw fitting used on many CFLs, LED lamps and incandescent light bulbs. The design was initiated by the U.S. EPA and the Lighting Research Center in ...

7. Energy saving lamp - Wikipedia

   en.wikipedia.org/wiki/Energy_saving_lamp

   Energy saving lamps are sources of artificial light that employ advanced technology to reduce the amount of electricity used to generate light, relative to traditional filament-burning light bulbs. Examples of energy saving lamps include: Fluorescent lamps; i.e. regular and compact. LED lamp. a Light-emitting electrochemical cell.