A lighting unit that emits light by the excitation of a gas (such as neon) enclosed within a sealed tube or bulb. The terms "neon tube", "neon" and "fluorescent tube" are all used to designate the source of fluorescent light.
Light sources in which electric current is passed through a gas causing electron excitation in the phosphor atoms composing the coating on the inner wall of the luminaire.
Tubular glass lights, the interior of which has a fluorescent coating. Light is produced by the action of a stream of electrons upon the coating.
A relatively cool, energy-efficient artificial light source. Produced by gas discharge (ionization) in a low-pressure tube. The recommended and most common type of lighting used for aquaria. Compare Incandescent.
A fluorescent lamp is a gas-filled glass tube with a phosphor coating on the inside, normally with two pins that extend from each end. Gas inside the tube is ionized by electricity which causes the phosphor coating to glow.
A fluorescent lamp is a gas-filled glass tube with a phosphor coating on the inside. Gas inside the tube is ionized by electricity which causes the phosphor coating to glow. Normally with two pins that extend from each end.
Electrodes are sealed into each end of a glass tube, (can be formed in a number of shapes), and a mercury vapour arc between them generates ultraviolet radiation, which is absorbed by a fluorescent powder coatÂing the inside of the tube, and released as visible light. It is a very efficient form of lighting.
A fluorescent lamp is a gas-filled glass tube with a phosphur coating on the inside; gas inside the tube is ionized by electricity which causes the phosphur coating to glow; normally has two pins extending from each end of the bulb