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A Low energy bulbs uses about 1/5 energy of a traditional bulb.

ie. 20w (Low energy bulb) = 100w (standard filiment bulb)

80%+ traditional bulb s' energy is lost as heat.

The 20% figure shown above only relates to the low energy bulb during its normal usage. The question was about the overall ecological balance, which includes ecological burden through manufacture, distribution and disposal (or recycling). Low energy light bulbs contain heavy metals, electronics and toxic materials, and are manufactured (and recycled) using much more complicated and, presumably, more ecologically damaging processes compared to those involved in traditional tungsten filaments.

The question is still open thus.

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13y ago
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12y ago

From most energy efficient to least energy efficient:

LED bulbs (relativly new)

Fluorescent bulbs (normal "energy savings" bulbs)

Halogen (used for high intensity lighting)

Incandescent bulbs (regular bulbs)

Energy efficient light bulbs are bulbs that convert a higher percentage of electical power into light. All bulbs also create waste heat, where energy is radiated as infrared. The less efficient bulbs tend to be "hotter" because of the amount of power "wasted" this way.

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12y ago

Eco-friendly light bulbs use less power because they need less volts to light. At least, I think so. Unaccurate, Google it, Yahoo! it, dogpile it.

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11y ago

they last longer and use less electricity thus making your bill smaller

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Q: What are energy efficient light bulbs?
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Related questions

Does a light dimmer work with the new energy efficient light bulbs?

If you are looking to use the new energy efficient light bulbs on a light dimmer you will need to buy specially made dimmable CFLs. Not all energy efficient light bulbs are compatible with dimmers so be sure to check the packaging for information.


Why is it better to use energy efficient light bulbs?

Energy efficient light bulb saves half of energy consumed by a regular bulb, although it has a lower range light compare to the high energy consumer bulbs.


Does energy efficient light bulbs produce less amount of heat than non-energy efficient light bulbs?

Yes, non energy efficient bulbs like the incandescents waste around 90% of there energy in the form of heat. LEDs and CFLs don't even come close.


Is compact fluorescent light the best energy saving bulb?

No, the most energy efficient bulbs are LED (Light Emitting Diode) light bulbs.


Which Lighting will be the most energy efficient?

Compact fluorescent light bulbs are pretty energy efficient and are energy star rated.


How much does energy efficent light bulbs cost per hour?

There is actually no energy efficient light bulbs in a way to interpret in physical determination. Energy efficient means less Watts required per hour compared to non energy efficient.


What makes LED light fixtures energy efficient?

LED light fixtures are made out of clusters of very small, super energy efficient bulbs. Because many of those bulbs are used, LED lights can be built to mimic the effects of regular incandescent bulbs. A huge part of what makes LED bulbs so energy efficient is that they do not produce heat as incandescent light bulbs do.


How many times do you need to replace energy efficient fluorescent light bulbs?

comparing to the traditional light bulbs energy efficient fluorescent light bulbs uses 25% to 75% energy and saves money also and it lasts up to 3 to 25 times long so there is no need to replace energy efficient fluorescent light bulbs often.


What advantages do LEDS have over light bulbs?

LEDs are definitely better than the ordinary light bulbs because they're more energy efficient, and you'll be able to get a lot of savings since you don't need to change your bulbs every now and then.


Which types of bulbs are regarded as energy efficient light bulbs?

Energy efficient light bulbs can be easily recognized, as they are each given an "ENERGY STAR" label. They can be purchased at a wide variety of retail locations, including Walmart, Target, Home Depot, or Lowe's.


Are energy efficient light bulbs cheap?

no not at all very expensive


Are there energy efficient table lamps?

Energy efficient table lamps are available in many online shops such as LampPlus and YLighting. Lamps can even be made energy efficient by changing the light bulbs to fluorescent spiral bulbs.