A compact fluorescent light (or CFL) is a fluorescent lamp that is increasingly aimed at replacing traditional incandescent lamps (tungsten lighting) as compact arrest and lights are generally agrees to use one 5th to 1/3 the electric power and last 8 to 15 times longer than traditional tungsten lighting. A fluorescent lamp is a gas discharge lamp whereby light is created by the passing of an electrical signal through a usually mercury vapour. This electric field excites the Mercury atoms to produce shortwave ultraviolet light which then causes a phosphor to fluoresce producing what we recognise as visible light.