Various Types of Light bulbs

Description: Incandescent light bulbs light up when electricity flows across a filament and heats it up hot enough to give off light. The inside of the light bulb is either a vacuum or is filled with certain gases. The filament is usually made of tungsten.

Description: Fluorescent light bulbs work by passing current through a tube filled with argon gas and mercury, which produces ultraviolet (UV) radiation. The UV radiation excites phosphors on the inside coating of the light bulb, causing them to glow (fluoresce). This generates the light.

Compact fluorescent light bulbs fit in the sockets designed for standard incandescent bulbs.

Description: Halogen light bulbs are incandescent light bulbs that contain halogen gas. When lit, a chemical reaction takes place that causes the tungsten to be redeposited on the filament rather than collecting on the inside surface of the light bulb. In order for this to happen, the glass of the light bulb (the envelope) needs to be thicker and the operating temperature needs to be hotter than that of a standard incandescent light bulb. This means that halogen light bulbs burn brighter, use more electricity, and are more expensive to make than other incandescent light bulbs.