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2. 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. The lamps use a tube that is curved or folded to fit into the space of an ...

3. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   A metal-halide lamp is an electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides [1][2] (compounds of metals with bromine or iodine). It is a type of high-intensity discharge (HID) gas discharge lamp. [1] Developed in the 1960s, they are similar to mercury vapor lamps, [1] but ...

4. Electrical ballast - Wikipedia

   en.wikipedia.org/wiki/Electrical_ballast

   An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps to limit the current through the tube, which would otherwise rise to a destructive level due to the negative differential resistance of the ...

5. 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.

6. Mercury-vapor lamp - Wikipedia

   en.wikipedia.org/wiki/Mercury-vapor_lamp

   Mercury-vapor lamp. A 175- watt mercury-vapor light approximately 15 seconds after starting. A closeup of a 175- W mercury vapor lamp. The small diagonal cylinder at the bottom of the arc tube is a resistor which supplies current to the starter electrode. A mercury-vapor lamp is a gas-discharge lamp that uses an electric arc through vaporized ...

7. Elephant at Oakland Zoo Eats Huge Pumpkin in One Bite & the ...

   www.aol.com/elephant-oakland-zoo-eats-huge...

   ABC News posted a video on TikTok of an African elephant at the Oakland Zoo doing just that, and it's so impressive to see! The Zoo placed the special Halloween treat in the elephant enclosure ...