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  2. LED tube - Wikipedia

    en.wikipedia.org/wiki/LED_tube

    LED tubes. LED tube is a type of LED lamp used in fluorescent tube luminaires with G5 and G13 bases to replace traditional fluorescent tubes. [1] As compared to fluorescent tubes, the most important advantages of LED tubes are energy efficiency and long service life. LED tubes are sometimes also referred to as ‘LED fluorescent tubes’.

  3. List of Mullard–Philips vacuum tubes - Wikipedia

    en.wikipedia.org/wiki/List_of_Mullard–Philips...

    Most post-war European thermionic valve (vacuum tube) manufacturers have used the Mullard–Philips tube designation naming scheme. Special quality variants may have the letter "S" appended, or the device description letters may be swapped with the numerals (e.g. an E82CC is a special quality version of an ECC82)

  4. Aquion Energy - Wikipedia

    en.wikipedia.org/wiki/Aquion_Energy

    Aquion Energy was a Bethlehem, Pennsylvania and Washington, D.C.–based company that manufactured sodium ion batteries (salt water batteries) and electricity storage systems.

  5. Fractionating column - Wikipedia

    en.wikipedia.org/wiki/Fractionating_column

    The amount of heat entering the column from the reboiler and with the feed must equal the amount heat removed by the overhead condenser and with the products. The heat entering a distillation column is a crucial operating parameter, addition of excess or insufficient heat to the column can lead to foaming, weeping, entrainment, or flooding.

  6. Condenser (laboratory) - Wikipedia

    en.wikipedia.org/wiki/Condenser_(laboratory)

    The Widmer column was developed as a doctoral research project by student Gustav Widmer at ETH Zurich in the early 1920s, combining a Golodetz-type arrangement of concentric tubes and the Dufton-type rod-with-spiral core. It consists of four concentric glass tubes and a central glass rod, with a thinner glass rod coiled around it to increase ...

  7. Stack light - Wikipedia

    en.wikipedia.org/wiki/Stack_light

    Stack light in automated production for in-line quality inspection. Stack lights (also known as signal tower lights, indicator lights, andon lights, warning lights, industrial signal lights, or tower lights) are commonly used on equipment in industrial manufacturing and process control environments to provide visual and audible indicators of a machine's status to machine operators, technicians ...

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