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What are the benefits of using fluorescent bulbs?
Fluorescent light bulbs have been shown to use one quarter less energy than a typical incandescent light bulb and they last longer. You will save money on utility bills (despite the initial cost) and will help save the environment by using bulbs which last longer.
What color light heats the best?
Technically, the pure colored light that could provide the most heat in the visible spectrum assuming same brightness levels is blue or violet, since the colors on that end of the spectrum has the shortest wavelength and hence have the most energy to produce the most amount of heat. You may have seen heat lamps which are generally red in color, however this is merely a red filter over a white light. The red filter acts to reduce the maximum amount of brightness released while radiating the maximum amount of heat from the white light. Hence while red light has been associated with heat, it is NOT the light which is technically able to heat the most. Just because a white light has been filtered does not mean that the light source was colored. For example pure produced blue light such as those in blue laser pointers are far stronger than red laser pointers. However an incandescent light bulb with a red filter will produce more heat than an incandescent light bulb with a blue filter simply because the filter has stopped more heat, the source remains the same for both incandescent light bulbs (both are white light).
How will a single burned-out bulb affect the string of lights if each light is attached to its own wire?
When bulbs are connected in series to one another, a failure of one bulb will open the circuit and the remaining bulbs in the line will go out because they have no power. However, bulbs in the line preceding the failed bulb will continue to be lit because their source of power has not been interrupted. When bulbs are connected in parallel, a failure of one bulb will have no effect the remaining bulbs because the power is not routed through any single bulb alone.
Uses of tungsten?
Tungsten's many alloys have numerous applications, most notably in incandescent light bulb filaments, X-ray tubes (as both the filament and target), and superalloys. Tungsten's hardness and high density give it military applications in penetrating projectiles. Tungsten compounds are most often used industrially as catalysts.
If white light goes into a material and only blue light comes out the other wavelengths have been?
absorbed
What is the difference between halogen and incandescent bulbs?
Halogen light bulbs are what has been around for a very long time. Incandescent bulbs are new and are more energy efficient.
Why incandescent light bulbs was phase out?
They have not yet been phased out. They are reliable stable technology and generally less expensive in the short term than alternatives.
Why are incandescent bulbs bad for the environment?
The incandescent light bulb is not efficient. Incandescent light bulbs have been around for about 200 years. They produce an appealing warm yellowish light. Their small compact design makes them easy to install in even small table or bedside lamps. Until 30 years ago they were the only electric bulbs available for household lighting. Their biggest downside is that they are inefficient to operate in that they use a relatively large amount of electric power. Alternatives: CFL: Today the compact fluorescent lamp has provided a low-energy alternative . These bulbs were invented in the late 1970's. They initially cost more than traditional incandescent bulbs, but they last longer (8000 hours) and use around 80% less electric power for the same brightness. LEDs: these are a new product and relatively expensive to buy, but their efficiency is equal to or even better than CFL's. They have lifetime quoted as 25,000 hours use.
What are the benefits of using fluorescent bulbs?
Fluorescent light bulbs have been shown to use one quarter less energy than a typical incandescent light bulb and they last longer. You will save money on utility bills (despite the initial cost) and will help save the environment by using bulbs which last longer.
How many lumens are in a 60 watt incandescent bulb?
Depends on the bulbs efficiency. The ones I've gotten in the past few years are between 700-800 lumens. Check the packaging, it should state.
What light bulb will you be unable to purchase in stores?
In Europe, the old fashioned incandescent light bulb has already been eliminated from stores, because of its energy inefficiency. In North America, incandescent bulbs are still sold in stores, however, we can reasonably expect that North America will eventually seek to eliminate them, in order to be more environmentally responsible.
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 many watts does a light use?
Electric lights that use from 0.02 watts to 50,000 watts have been manufactured. The CFLs, fluorescent tubes, and incandescent bulbs in your house probably operate in the range of 20-100 watts.
Do incandescent light bulbs not get as hot as fluorescent light bulbs?
No, given the same lumen rating. Florescent lights are more electrically efficient than incandescent bulbs. Be careful, fluorescent bulbs currently contain mercury and should be handled and disposed of properly. For more information, you may also want to read. http://home.howstuffworks.com/question236.htm
Do the energy saving light bulbs cause headaches?
I'm suprised there hasn't been more of a response to this question. On the 30th August 2009, a Europe-wide ban on traditional incandescent bulbs began its roll out, starting with a ban on 100W bulbs and old-style frosted or pearled bulbs. So, IF these bulbs trigger migraines, then there's going to be tears before bedtime, isn't there? http://www.dailymail.co.uk/sciencetech/article-505571/Energy-saving-bulbs-cause-migraines-warn-experts.html
What is the strip of material that glows in a light bulb called?
The strip of material that glows inside a light bulb is called the filament. It is usually made of tungsten and emits light when an electric current passes through it, heating it to a high temperature, causing it to glow and produce visible light. The filament is a crucial component in incandescent light bulbs, which have been widely used for many years, although more energy-efficient lighting technologies, such as LED (Light Emitting Diode) bulbs, are becoming increasingly popular
What is 130V brass base light bulb used for?
There are not many brass base bulbs left in service these days. This is because aluminium is a cheaper product to use. The 130 volt rating is the maximum voltage that can be applied to the filament. Using this rated bulb on 120 volts will extend the lifetime of the bulb. Many traffic signal fixtures used 130 volt bulbs to cut down on maintenance of changing burnt out bulbs. Today most traffic light have been changed out to LED lamps that get about five times the life of the old incandescent bulbs.
