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Incandescent bulbs or if you prefer, plain old fashioned light bulbs, the ones with a filament (the bit of wire inside) that gets very hot and gives off light. They tend to give off a bit more at the red end of the spectrum, particularly the lower power ones but they do give off all the colours. Some run the filament at a sufficiently high temperature to give a pretty balanced white light. Most of the modern energy efficient bulbs give off light at a limited number of frequencies but much more light per watt of power that goes in.
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Clear vs frosted light bulbs?
Those wanting softer, diffused light use frosted light bulbs. Clear bulbs give light that is brighter and suitable for everyday applications.
How do light bulbs cause global warming?
In a incandescent light bulb almost 90% of the energy taken in is being wasted as heat. only 10% is being used as visible light. this means that alot of energy taken in from ex sun,vind and water are not being used as it should have been. Thats why the LED bulbs are so good because they dont give out as much wasted energy
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.
How to compare the brightness of the old light bulbs to the new energy effiecint bulbs?
Use a phone app like light meter which uses the camera to give a luminosity level.
What would happen if we didn't have any light bulbs?
Yes, you can live without light bulbs... That would give an increase of fires though...
What is it that normal light bulbs give off much more than fluorescent light bulbs?
Heat.
Do higher wattage bulbs give a brighter light?
No. All light from light bulbs (incandescent) are equally bright. Higher wattage bulbs simply produce a higher quantity of light measured in lumens.
Can you give me a sentence using the word visible light?
As they sailed on, there was a visible light at the horizon.
Clear vs frosted light bulbs?
Those wanting softer, diffused light use frosted light bulbs. Clear bulbs give light that is brighter and suitable for everyday applications.
Do invisible flames give off light?
Invisible means there is no visible light. They may give off other electromagnetic radiation, but "light" usually refers to visible light.
How do light bulbs cause global warming?
In a incandescent light bulb almost 90% of the energy taken in is being wasted as heat. only 10% is being used as visible light. this means that alot of energy taken in from ex sun,vind and water are not being used as it should have been. Thats why the LED bulbs are so good because they dont give out as much wasted energy
How does a xenon bulb compare to halogen?
Xenon bulbs give off whiter light than Halogen bulbs, which give off a more yellow tint. Also, Halogen bulbs give off more heat than Xenon bulbs.
Are light bulbs really efficient?
Normal incandescent bulbs produce a lot of heat as well as light, so are not so efficient as low energy bulbs which can give the same light but consume much less electricity
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 three things that give of light?
The Sun, Lightning Bugs (or Fireflies), Electricity and Light Bulbs.
What are negative effects of visible light?
It could blind you, sunwise burn you or give you cancer
Why white light emit light?
Light doesn't emit light, but other things do, like stars for example. Many things give off light, but white light is the only visible light, and is made up of many different colors, like a rainbow. The sun and other stars emit such light.
