Which bulbs consume less energy?

Answer 1

Common indoors type light bulbs, from most efficient to least efficient:

regular size tubular fluorescent lamps with electronic ballasts

CFLs (compact florescent lamps)

fluorescent lamps with reactive ballasts (old type of ballast)

incandescent halogen lamps

incandescent tungsten lamps

Answer 2

CFLs and LED lights are all very energy-efficient. In the long run LED bulbs will save you the most money. They cost more to buy at the beginning however last up 20X longer and also save you money at the same time.

An energy saving calculator can show you how much you can save. See Sources and Related Links.

Answer 3

The fluorescent light bulb uses much less energy, for the same amount of light, than the old-fashioned incandescent light bulb. A LED would use even less light, but those are, as yet, too expensive for general use.

The fluorescent light bulb uses much less energy, for the same amount of light, than the old-fashioned incandescent light bulb. A LED would use even less light, but those are, as yet, too expensive for general use.

The fluorescent light bulb uses much less energy, for the same amount of light, than the old-fashioned incandescent light bulb. A LED would use even less light, but those are, as yet, too expensive for general use.

The fluorescent light bulb uses much less energy, for the same amount of light, than the old-fashioned incandescent light bulb. A LED would use even less light, but those are, as yet, too expensive for general use.

Answer 4

In an energy saving light bulb, the electricity passes through a gas which causes it to emit ultraviolet rays. When these rays pass through the flourescent coating, the become visible, white light.

Actually an energy saving light bulb is simply any light bulb that uses significantly less electrical energy than an incandescent light bulb that produces the same amount of visible light energy. There are several technologies that can do this, two that have made it to the market are CFL (Compact Fluorescent Lamp) and LED (Light Emitting Diode).

The one mentioned above is the CFL (although the description given is marginal at best). LED bulbs are entirely solid state and thus involve no gas.

Some LED-array lamps now being made are hybrids: the light from the array impinges on a fluorescent material to gibe a stronger but more evenly diffused final light output. These can also be tweaked chemically to give a "warmer" light than the diodes alone give.

Answer 5

Of the common light sources, LEDs (Light Emitting Diodes) have the greater output in lumens per Watt. This is in comparison to Tungsten filament bulbs (including halogens) and compact fluorescent bulbs

Answer 6

The fluorescent light bulb uses much less energy, for the same amount of light, than the old-fashioned incandescent light bulb. A LED would use even less light, but those are, as yet, too expensive for general use.

Answer 7

The LED. It is also, for now, fairly expensive. The second-best choice for efficiency (and probably the best choice economically, for now) is the fluorescent light.

Answer 8

CFL of compact fluorescent light bulbs, often just called fluorescent bulbs, save energy. They are much more efficient than incandescent light bulbs, require less power and create less heat.

Answer 9

LED lamps consume less energy that incandescent lamps.

Answer 10

LED