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Does a fluorescent light use 5 times as much energy as an incandescent bulb?
Wiki User
∙ 10y ago
No, a fluorescent bulb uses one fifth of the energy for the same brightness.
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Some people think of fluorescent tubes and bulbs as hugely unfriendly to the environment because of the poisonous and/or polluting materials used to manufacture them - and then the need to dispose of them properly after they have reached the end of their useful life. If the tubes and bulbs get broken and the poisons and/or pollutants in them are allowed to enter water-courses, this can cause severe effects.
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However the severe effects caused by excess carbon dioxide pollution in the atmosphere from the use of incandescent bulbs are considerably more serious and even more hugely unfriendly to the environment.
In the lifetime of a fluorescent 20 watt bulb (8000 hours) the energy used is 160 kWh, while the equivalent 100 watt incandescent bulb uses 800 kWh in that time, giving rise to more than half a ton of CO2. This has to be compared to 0.005gram of Mercury in a fluorescent bulb, which is considerably less than the mercury released by a coal-fired power plant in generating the energy to light it.
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∙ 10y ago
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Is Fluorescent lighting brighter than incandescent?
It is much less efficient. A lot of the energy it uses is converted to heat, rather than light. That's why it burns hotter than a fluorescent.
Why do you use compact fluorescent lamps instead of incandescent bulbs?
A compact fluorescent lamp or CFL has the advantage of consuming less power.It works in the same way as a fluorescent tube light however it is made in a much more compact shape. This means CFLs can be used to replace ordinary light bulbs which have incandescent filaments.If you replace your ordinary light bulbs with CFLs they will use only 20% (one fifth) of the energy to give you the same amount of light output.More informationEnergy-saving lamps, such as normal and compact fluorescents, save a lot of money compared to normal lamps which have an incandescent filament because of the fact that fluorescents don't use a high-temperature filament that produces more heat energy than light energy.Mainly because they run "cool", a fluorescent lamp uses only about one fifth - 1/5 - of the electrical energy used by a lamp that has a hot, incandescent filament.Put another way, you can use five fluorescent lamps, each giving out the same amount of light as one incandescent, for only the same total electricity running costs.Another good thing about fluorescent lamps is that they have a useful life that is between 5 and 10 times longer than an incandescent lamp, saving even more money over a period of years.
What is the most economical incandescent bulb 10 watts or fluorescent lamp 10 watts and why?
the most economical is the incandescent bulb because the power of bulb is low only while the fluorescent lamp is low and additional the power of ballast from 10%-20% power consumed.but the fluorescent lamp is 5 times brightly the incandescent bulb.
Does a regular light bulb use more energy than a fluorescent light bulb?
uses less electricity and produces less heat
How much energy does a CFL light bulb save versus an incandescent bulb?
About 80%. An incandescent bulb produces 12 lumens per watt, (15 for halogen) while a CFL produces about 60 lumens per watt.
What is the average energy energy consumption of an energy saving light bulb?
Fluorescent lighting is much more energy efficient than incandescent lamps, usually by as much as 60 to 80%. That also translates into a corresponding energy savings. I don't recall the exact figure off hand, but the light output from a fluorescent lamp is about three times it's rating. For instance, a 40 watt fluorescent puts out the equivalent light of a 120 watt incandescent bulb.
How efficient is a fluorescent bulb that emits the same amount of light as a 100w incandescent bulb?
It is about 5 times more efficient than the incandescent bulb, in other words for the same light a fluorescent uses one fifth the electric power.
Why have compact fluorescent light bulbs come on the market?
An ENERGY STAR qualified compact fluorescent light bulb (CFL) will save about $30 over its lifetime and pay for itself in about 6 months. It uses 75 percent less energy and lasts about 10 times longer than an incandescent bulb.
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.
Is Fluorescent lighting brighter than incandescent?
It is much less efficient. A lot of the energy it uses is converted to heat, rather than light. That's why it burns hotter than a fluorescent.
How do fluorescent light bulbs help the environment?
Fluorescent lights help the environment by conserving energy and being more efficient.Traditional bulbs produce about 15 lumens per watt, while fluorescent bulbs produce between 50 to 100 lumens per watt. This makes fluorescents bulbs five or six times more efficient than traditional bulbs.Also, the concepts behind the two bulbs are different. Traditional, or incandescent bulbs create heat in order to create light, which wastes a lot of energy. Fluorescent bulbs use a gas containing argon and mercury vapor that creates ultraviolet photons.This helps the environment by not wasting resources.Alternative AnswerFluorescent lamps might lower your electricity bill, but they use more energy and resources to manufacture, compared with incandescent lamps. They also contain mercury and other toxins. So fluorescent lamps probably do more damage to the environment than incandescent lamps. So, if you want to save on your energy bills, use fluorescent lamps; if you want to protect the environment, then use incandescent lamps.
Why do you use compact fluorescent lamps instead of incandescent bulbs?
A compact fluorescent lamp or CFL has the advantage of consuming less power.It works in the same way as a fluorescent tube light however it is made in a much more compact shape. This means CFLs can be used to replace ordinary light bulbs which have incandescent filaments.If you replace your ordinary light bulbs with CFLs they will use only 20% (one fifth) of the energy to give you the same amount of light output.More informationEnergy-saving lamps, such as normal and compact fluorescents, save a lot of money compared to normal lamps which have an incandescent filament because of the fact that fluorescents don't use a high-temperature filament that produces more heat energy than light energy.Mainly because they run "cool", a fluorescent lamp uses only about one fifth - 1/5 - of the electrical energy used by a lamp that has a hot, incandescent filament.Put another way, you can use five fluorescent lamps, each giving out the same amount of light as one incandescent, for only the same total electricity running costs.Another good thing about fluorescent lamps is that they have a useful life that is between 5 and 10 times longer than an incandescent lamp, saving even more money over a period of years.
What is the most economical incandescent bulb 10 watts or fluorescent lamp 10 watts and why?
the most economical is the incandescent bulb because the power of bulb is low only while the fluorescent lamp is low and additional the power of ballast from 10%-20% power consumed.but the fluorescent lamp is 5 times brightly the incandescent bulb.
Why does energy saver give more light than electric bulb of same watt?
Both bulbs output the same amount of energy. The difference is in how much of that energy is output as heat vs the energy output as light. In a standard incandescent light bulb about 10% of the energy is output as light while the other 90% is output as heat. This makes the bulb only 10% efficient. For a florescent bulb the output of light is about 50% and the other 50% is output in heat. This means that a fluorescent bulb outputs five times as much light for the same wattage as a standard incandescent bulb, hence you can get the equivalent of 100 watts of light output for only 20 watts of electricity.
What are the uses for compact fluorescent light?
Compact fluorescent lights are used in place of incandescent lights, but use one-fifth or one-third of the electrical power. They also last about ten times longer, making them very efficient for lighting rooms.
What is the price difference between a normal light bulb and an energy effiecient one of the same power in Queensland?
Incandescent light bulb $2 Compact fluorescent light $4 The CFL uses about 25% of the power and last about 10 times longer before replacement is needed. The Queensland Government Climate Smart Living program will change your light bulbs for you, get a real time power meter for your house and get and energy report for your house.
Replacing Old Light Bulbs with CFLs?
Upgrading to an energy smart home starts with replacing all of the old incandescent light bulbs with compact fluorescent lights, commonly abbreviated as CFLs. When buying new light bulbs, the most important specifications to look for include luminosity, bulb life, and power. The intensity of the light is measured in Lumens while the power is rated with Watts. In general, a CFL with about five times lower watt rating than an incandescent bulb can offer the same luminosity as the older bulb.
