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2. 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 ...

3. Ultra-high-performance lamp - Wikipedia

   en.wikipedia.org/wiki/Ultra-high-performance_lamp

   Ultra-high-performance lamp. An ultra-high-performance lamp, often known by the Philips trademark UHP, is a high-pressure mercury arc lamp. [1] These were originally known as ultra-high-pressure lamps, [2] [3] because the internal pressure can rise to as much as 200 atmospheres when the lamp reaches its operating temperature.

4. Metal-halide lamp - Wikipedia

   en.wikipedia.org/wiki/Metal-halide_lamp

   Like other gas-discharge lamps such as the very-similar mercury-vapor lamps, metal-halide lamps produce light by ionizing a mixture of gases in an electric arc.In a metal-halide lamp, the compact arc tube contains a mixture of argon or xenon, mercury, and a variety of metal halides, such as sodium iodide and scandium iodide. [7]

5. High school valedictorian delivers poignant graduation speech ...

   www.aol.com/lifestyle/high-school-valedictorian...

   High school class valedictorian Alem Hadzic was unusually somber before delivering his commencement speech on May 16. “People were coming over to wish me luck and I was kind of blowing them off ...

6. 'The Masked Singer' Season 11 finale: Every star unmasked - AOL

   www.aol.com/news/see-first-six-costumes-masked...

   The “High School Musical” star was crowned the Season 11 champion during the May 22 finale. The actor was up against the Gumball, who was a fierce competitor all season.

7. 2024 year in sports winners and losers: Caitlin Clark, Paris ...

   www.aol.com/2024-sports-winners-losers-caitlin...

   In 2024, the wide, wide world of sports saw repeat champions, first-time titlists, a grand Paris summer and some epic fails. The winners and losers: