A fluorescent light uses a tube of excited mercury gas to illuminate a phosphorescent coating, producing visible light. Fluorescent lights use less energy, produce less heat and tend to last longer than incandescent ligh... More »

According to the U.S. Department of Energy, engineer and inventor Peter Cooper Hewitt created the first usable fluorescent lamp in the early 1900s. While earlier inventors and researchers experimented with fluorescence, ... More »

A fluorescence microscope is similar to a conventional light microscope with some added features to enhance its capabilities. It uses a higher intensity light source, which may be a mercury or xenon lamp, to produce ultr... More »

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The compact fluorescent light bulb produces light when electricity travels through the circular tube that contains argon and some mercury, creating an ultraviolet light that reacts with a coating of phosphor on the insid... More »

CFL, or compact fluorescent light bulbs, produce light when electricity is routed through a small tube that contains argon and mercury. When the electricity mixes with these gases, it produces light. CLF light bulbs use ... More »

Light ballasts work by illuminating bulb chambers filled with gas and regulating the current flow of the lamp. Ballast controls use either simple fixed resistors or more complex control systems. More »

The most common type of fluorescent light, the hot cathode light, works by using electricity to supercharge the ions of mercury gas encased within a glass tube. When the ions are charged, they emit photons that are conve... More »