Traditional Incandescent Light Bulbs Use More Electricity Than Light Bulbs Of More Recent Design

Cfl bulbs or compact fluorescent light bulbs use an electric current driven through a tube typically containing mercury vapor.

Traditional incandescent light bulbs use more electricity than light bulbs of more recent design.

Bulb breakage and bulb replacement costs have not been factored into this comparison chart. Traditional incandescent light bulbs incandescent bulbs are the most common type of light bulbs. Although inefficient incandescent lamps possess a number of key advantages they are inexpensive to buy turn on instantly are available in a huge array of sizes and shapes and provide a pleasant warm light with excellent color rendition. Incandescent lamps are often considered the least energy efficient type of electric lighting commonly found in residential buildings.

Many people still purchase cfl bulbs because they use less energy than incandescent bulbs and are less expensive than most led s. Although they re being slowly replaced by more energy efficient bulbs such as compact fluorescent light bulbs cfls and led bulbs many household and commercial light fixtures still use them. Bright led flood lamps use only 11 to 12 watts while creating a light output comparable to a 50 watt incandescent bulb. Incandescent bulbs are much less efficient than other types of electric lighting converting less than 5 of the energy they use into visible light.

Cfl bulbs last much longer than incandescent light bulbs and they also use a lot less energy than traditional incandescent light bulbs. Today light bulb manufacturers have managed to make cfl bulbs with a wider range of light quality and many of them are indistinguishable from traditional incandescent light bulbs. The luminous efficacy of a typical incandescent bulb for 120 v operation is 16 lumens per watt compared with 60 lm w for a compact fluorescent bulb or 150 lm. Can last 3 25 times longer.

Led bulbs once many times more expensive than incandescent bulbs have plunged in price and can often be found for less than 2 each. The remaining energy is lost as heat. Incandescent bulbs and cfl bulbs are more easily broken than leds which increases their cost of use. Compared to traditional incandescents energy efficient lightbulbs such as halogen incandescents compact fluorescent lamps cfls and light emitting diodes leds have the following advantages.

At low power levels the difference is even larger. Most leds come with a minimum 2 year guarantee. At low power levels the difference is even larger. Typically use about 25 80 less energy than traditional incandescents saving you money.

Led bulbs use more than 75 less energy than incandescent lighting. Led bulbs require much less wattage than cfl or incandescent light bulbs which is why leds are more energy efficient and longer lasting than their competitors.