Types of Light Bulbs and

Their Uses

Bulbs

There are many different types of light bulbs around, and they were all designed with a certain use in mind.

Incandescent Bulbs

the most familiar and standard bulb produce a steady warm light used in many household applications can last for 700-1000 hours produces a yellow light

Incandescent Bulbs

electricity heats a tungsten filament in the bulb until it glows

filament is in a vacuum or in a mixture of argon/nitrogen gas

energy consumed by the bulb produces heat

low Lumens per Watt performance surge of energy causes the filament

to break

Incandescent Bulbs

Halogen Bulbs

produces a brilliant white light more lumens per watt than

incandescent never touch glass small in size and are dimmable more expensive high temperature and possible fire

hazard

Halogen Bulbs

electricity passes through a tungsten filament

filament in a glass tube containing halogen gas

halogen gas causes a chemical reaction removing the tungsten from the wall of the glass and deposits it back onto the filament

Halogen Bulbs

Fluorescent Bulbs

long bulb life 10,000 to 20,000 hours very efficient produced very little heat cannot be used with dimmers need components called ballasts to

provide the right amount of voltage casts green light or blue daylight

Fluorescent Bulbs

electrical current passes through a tube filled with argon gas and mercury

this produces ultraviolet radiation that bombards the phosphorous coating causing it to emit light

Fluorescent Bulbs

Compact Fluorescent

like fluorescent bulbs, but in a much smaller package

produce little heat and are very efficient

cannot be used with dimmers. last up to 10,000 hours

Compact Fluorescent