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Light bulbs always use energy. Therefore to save energy they should be switched off.
But certain types of bulb use much less energy than others:
Incandescent: 10 lumens per watt
Halogen: 13 lumens per watt
Fluorescent: 50-60 lumens per watt (cheap to buy)
LED: 50-70 lumens per watt (expensive to buy)
Wiki User
∙ 11y ago
Wiki User
∙ 12y agoenergy efficient light bulbs work by trapping excess heat to make more light
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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.
Can LED lights be used on a timer?
LEDs do not work on all timers. This is also the case with many energy saving bulbs. The timer lets enough voltage thru to partially light the LEDs and energy saving bulbs. LEDs will light fully when the timer is "on", but will continue to light dimly when the timer says "off". Energy saving bulbs will have a dim flicker when "off" thru a timer. I have not found a timer yet that solves this problem. If anyone knows of a solution I'd love to be able to use energy efficient lights with the convenience of a timer.
What light bulbs provide the most natural light?
Any natural light bulbs that use incandescent lighting will work well, and give off a rounder light than the "sterile white" lighting of normal bulbs.
What are the advantages and disadvantages of using compact fluorescent light bulbs?
One nice thing about light bulbs is that they provide light indoors and when it is dark outside, without having to light a candle or an oil lamp. They are also relatively safe, clean and easy to operate. Disadvantages include the fact that you will need electricity and wires that are properly installed and cannot be easily moved about. It is also difficult to repair a broken light bulb or one that has burned out, and they must be disposed of and replaced.
Why are 92 Toyota corolla tail lights out but dash light work fuse is fine?
If your 92 Toyota Corolla taillights are out, but the dash light and fuse work fine, the bulbs could have burn out. Replace bulbs on each side.
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.
Can any dimmer work with energy efficient bulbs?
Yes, if they replace the switch at the wall.
Why is the energy of a flashlight heat and light energy?
because old - style light bulbs work by passing an electric current through a thin piece of metal (tungsten is commonly used in these) to heat it up enough to make it glow. In these old - fashioned light bulbs, most of the input energy is given out as heat (about 95%) and the rest light. However, in new, so called,"energy efficient" light bulbs, an electric current is passed through different gases (including mercury gas) to make the particles collide with each - other and give out light. Depending what metal vapour you use determines the colour of the light given off. These are more energy efficient because about 60% of the energy given out is heat, and 40% light, so it isn't ideal, but is better than the old light bulbs. However, these new light bulbs might not be entirely benefitial as they are less cost - effective than the old ones. Written by a 12 - year old!
Can LED lights be used on a timer?
LEDs do not work on all timers. This is also the case with many energy saving bulbs. The timer lets enough voltage thru to partially light the LEDs and energy saving bulbs. LEDs will light fully when the timer is "on", but will continue to light dimly when the timer says "off". Energy saving bulbs will have a dim flicker when "off" thru a timer. I have not found a timer yet that solves this problem. If anyone knows of a solution I'd love to be able to use energy efficient lights with the convenience of a timer.
Why don't people always use the most energy-efficient type of lighting?
Cost and aesthetics. Compact flourescent bulbs have an initial cost much higher than incandescent bulbs, though they are cheaper in the long run. CFLs also emit light that "looks" different than incandescent bulbs, and may not work for the desired application such as high intensity lights for work areas.
Why is a glowing bulb hotter than a tube light?
Incandescent bulbs work by heating a filament (usually made of a tungsten compound) until it glows white. Up to 90% of the energy needed goes to waste in the process, since humans can't see into the infrared. Fluorescent bulbs work by exciting the molecules of mercury vapor into emitting ultraviolet light, which is then absorbed by the white phosphor coating and re-emitted as visible light. It's much more energy efficient -- and more importantly, nowhere near as hot.
Do televisions use light bulbs to work?
No
Why do all bulbs on right rear not light up but do light up if switched to left side?
burnt bulbs replace them correct answer if the bulbs work on one side, but same bulbs dont work on other side , u have a broken wire to the side that doesnot work if the bulbs were burnt out, they would not work on either side
How do energy efficient electric heaters work?
Energy efficient electric heaters work by conserving energy and not wasting energy. The point of energy saving heating is to save money and lower carbon emissions.
Is there a desk light that clips to your computer monitor to help save space on my desk?
The LED Energy Efficient Clip-On Lamp Chrome will work.
Why wont your dashboard light work in a 2000 expedition?
Check fuses and light bulbs
What light bulbs provide the most natural light?
Any natural light bulbs that use incandescent lighting will work well, and give off a rounder light than the "sterile white" lighting of normal bulbs.
