In Fluorescent lamps the current flows through a gaseous conductor, instead of a solid state conductor where electrons simply flow from negative end to the positive end. A pair of electrodes, one at each end - are sealed along with a drop of mercury and some inert gases (usually argon) at very low pressure inside a glass tube. A fluorescent lamp basically consists of a long glass gas discharge tube. Description: Fluorescent Lighting: Fluorescent Light Parts Diagram Wiring with Fluorescent Light Fixture Parts Diagram, image size 780 X 381 px, and to view image details please click the image.. An electric current in the gas excites mercury vapor, which produces short-wave ultraviolet light that then causes a phosphor coating on the inside of the lamp … Start studying Light Microscope Parts and Functions. Glass envelope containing inert neon or … A fluorescent lamp has changed over electrical energy into useful light energy to a great deal more proficiently than incandescent lamps.The normal luminous viability of fluorescent lighting frameworks is 50 to100 lumens per watt, which is a few times the adequacy of incandescent lamps with equivalent light yield.. How does a Fluorescent Lamp work? They all use phosphors excited by electrons to create light. They are long glass tubes filled with a small amount of mercury. A few fluorescent lamp colors are dimmer, such as Deluxe versions of cool white and warm white, and a few others. (Principle of a fluorescent lamp) There are tubular, ring-shaped and U-shaped fluorescent lamps and also compact fluorescent lamps. Fluorescent lamps only make full light output in a somewhat narrow temperature range. The tube light or fluorescent light is a low pressure mercury vapor gas discharge lamp and it uses fluorescent to produce white light. Tube light wiring diagram. The excited mercury atoms produce short-wave ultraviolet light that then causes a phosphor to fluoresce, producing visible light. There are three main types of fluorescent lamps: cold cathode, hot cathode, and electroluminescent. Ballast regulates current flow. Lamps for Instant-start fixtures don't need a filament to heat, but may contain a filament in the cathode anyway. ... contrast is provided by differences in light intensity that result from differences in refractive indices in parts of the specimen that put light waves more or less out of phase. A fluorescent lamp's ballast works to control this. The classic fluorescent lamp design, which has fallen mostly by the wayside, used a special starter switch mechanism to light up the tube. The simplest sort of ballast, generally referred to as a magnetic ballast, works something like an inductor.A basic inductor consists of a coil of wire in a circuit, which may be wound around a piece of metal. Starting a Fluorescent lamp. You can see how this system works in the diagram below. Connection and Working. When the lamp first turns on, the path of least resistance is through the bypass circuit, and across the starter switch.