Lighting Bulbs

A light-emitting-diode (LED) is a semiconductor diode that emits light when an electric current is applied in the forward direction

Like in a Metal Halide lamp, the working principle of a Sodium Vapour lamp is that of a gas-discharge tube,

Metal Halide Lamps are gas-discharge tubes like the fluorescent tubelight and the CFLs, in which an electric arc is discharged

Halogens are Incandescent Lamps where the tungsten filament is enclosed in a transparent glass envelope, filled with an inert gas 

A fluorescent lamp or fluorescent tube light is a gas discharge lamp. It consists of a phosphor-coated glass tube with

Compact Fluorescent Lamp (CFL), also known as a compact fluorescent light bulb, is basically a fluorescent tube light wound or

The Incandescent lamp also known as electric lamp or Filament lamp, but better known as the Electric Bulb is a