Energy saving light - how it works


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Energy saving light - this is how it works

The energy saving lamps belong to the group of fluorescent tubes. They are very different from incandescent because they do not have a filament. Energy saving lights include a gas that starts to glow with electricity.
An energy saving lamp consists of a straight or bent glass tube, which is filled with a noble gas-mercury mixture. The inner wall of the glass tube was coated with a chemical. At the two ends of the tube are metal pins, also called electrodes.
When the light is turned on, current flows through the electrodes. This stimulates the gas in the tube to emit ultraviolet light. This light is invisible, but the chemical on the tube wall transforms the invisible light into visible rays.
An energy saving lamp
requires a ballast. As a result, the AC voltage of the power grid is first rectified to then be converted back into an AC voltage with higher frequency. After ignition with high voltage, a significantly lower burning voltage is established. An inductor limits the power supply while the ESL is on. A so-called smoothing capacitor produces flicker-free light. The ballast is integrated in the energy saving lamp already in the version, also known as socket.
The convolutions of the tubes are necessary to achieve a certain discharge length for the lamp to work efficiently. In most ESL, the outer shell hides the classic form with the turns, called folding form. That really only has
aesthetic reasons.

Video Board: How Modern Light Bulbs Work.

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