How much money do you save by using a 20 Watt Compact Fluorescent over an incandescent bulb?

How much money do you save by using a 20 Watt Compact Fluorescent over an incandescent bulb?
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An Energy Star qualified compact fluorescent light bulb can save you around $30 over it's lifetime, paying for its self in about 6 months.
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Related questions

A homeowner replaces a 65 watt incandescent bulb with a 15 watt compact fluorescent lamp. The light is on 2000 hours a year. If electricity cost 10 cents a kilowatt-hour, how much money is saved on the electric bill in one year? w) $50.00 x) $10.00 y) $5.00 z) $1.00

Description : A homeowner replaces a 65 watt incandescent bulb with a 15 watt compact fluorescent lamp. The light is on 2000 hours a year. If electricity cost 10 cents a kilowatt-hour, how much money is saved on the electric bill in one year? w) $50.00 x) $10.00 y) $5.00 z) $1.00 

Last Answer : ANSWER: X -- $10.00 

Can I replace a 60 watt incandescent light bulb with a fluorescent or LED bulb that puts out more light than the incandescent?

Description : Can I replace a 60 watt incandescent light bulb with a fluorescent or LED bulb that puts out more light than the incandescent?

Last Answer : Light output is measured in lumens, and yes, you can find a fluorescent bulb in lumen output equal to or greater than an incandescent 75 or 100 watt bulb.And it won’t be anywhere near 60 watts, so you are safe.

I have a 60 watt/120v clip-on lamp. What is the highest wattage of compact fluorescent bulb can I safely use in this lamp?

Description : I have a 60 watt/120v clip-on lamp. What is the highest wattage of compact fluorescent bulb can I safely use in this lamp?

Last Answer : By the way, I mean actual watts on the fluorescent bulb, not replacement-watts. :)

What is the brightest Compact Fluorescent bulb?

Description : What is the brightest Compact Fluorescent bulb?

Last Answer : The brightest compact fluorescent bulb is of over 100 lumens or higher outputs at higher drive currents.

Which is a better floor lamp - incandescent or fluorescent?

Description : Which is a better floor lamp - incandescent or fluorescent?

Last Answer : Incandescent floor lamps emit a lower ray of light, therefore you won't get as bright a light shine. A flourescnet light is much brighter. It really depends on where you will put the lamp.

Office lighting - incandescent or fluorescent?

Description : Office lighting - incandescent or fluorescent?

Last Answer : The fluorescent lighting is what is used in most offices. This lighting offers great efficiency as well as encourages productivity.

How many lumens in a 250 Watt incandescent lamp?

Description : How many lumens in a 250 Watt incandescent lamp?

Last Answer : The actual amount of light (lumens) given off by a bulb depends on the how the bulb was made and with what materials. It depends on the filament material, its length and thickness, and the ... 3940 lumens at its highest setting.Philips 250 Watt 120 to 130V PAR38 Krypton Flood Bulb emits 3100 lumens

What is the equivalent of 100 watt incandescent light bulbs in LED light bulbs?

Description : What is the equivalent of 100 watt incandescent light bulbs in LED light bulbs?

Last Answer : That is a very good question, so I ended up doing a little research on the internet to find the information. It appears in order to match the intensity of a 100watt light bulb, you'll need 15watts of LED light bulbs.

Do your Compact Fluorescent bulbs (the curly ones) last 9000 hours?

Description : Do your Compact Fluorescent bulbs (the curly ones) last 9000 hours?

Last Answer : I use them, but my house is old and the wiring, although safe (been checked by experts) is a bit funky. My curly bulbs last waaaaaaay longer than the incandescent ones, but not nearly as long as they probably ... I would log it, like you do, but I think I would be laughed at if they saw my house.

Full form of CFL used in place of electric bulbs is – (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Description : Full form of CFL used in place of electric bulbs is – (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Last Answer : (1) compact fluorescent lamp Explanation: A compact fluorescent lamp (CFL) is a fluorescent lamp designed to replace an incandescent lamp; some types fit into light fixtures formerly used for incandescent lamps.

How does a compact fluorescent lamp consume less electricity than conventional fluorescent lamps and bulbs?

Description : How does a compact fluorescent lamp consume less electricity than conventional fluorescent lamps and bulbs?

Last Answer : Fluorescent lamps are based on the phenomenon of gas discharge between two electrodes at the ends of a glass tube. Generally these tubes contain a little mercury in the low-pressure vapour phase. When ... poor efficiency. The three types of lamps may have a typical efficiency ratio of 8:6:3.

Full form of CFL used in place of electric bulbs is (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Description : Full form of CFL used in place of electric bulbs is (1) compact fluorescent lamp (2) constantan filament lamp (3) closed filament lamp (4) closed fluorescent lamp

Last Answer : compact fluorescent lamp

Will the filament resistance of a bulb be higher at normal temperature or in incandescent condition ?

Description : Will the filament resistance of a bulb be higher at normal temperature or in incandescent condition ?

Last Answer : As the resistance increases with increasing temperature, the resistance of the filament of the bulb will be higher than the normal temperature.

Incandescent lamps are classified according to __________. A. shape of bulb and type of service B. size and style of base C. operating voltage and wattage D. all of the above

Description : Incandescent lamps are classified according to __________. A. shape of bulb and type of service B. size and style of base C. operating voltage and wattage D. all of the above

Last Answer : Answer: D

Broke a fluorescent bulb, will i get mercury poison?

Description : Broke a fluorescent bulb, will i get mercury poison?

Last Answer : First thing: Relax. Second: You are fine. This was an issue with a former co-worker of mine who always cried like a baby when these things came in on a pallet broken. My boss, in order to shut him ... You would also have to eat the dust from inside the bulb to get poisoning right away. You're fine.

Exactly how hazardous is it to break a fluorescent bulb and release the mercury inside it?

Description : Exactly how hazardous is it to break a fluorescent bulb and release the mercury inside it?

Last Answer : The Mercury inside the fluorescent bulb is not enough to cause any harm, it has very little amount of mercury , you can breathe it with no effects at all.

In a filament type light bulb most of the electric power consumed appears as – (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Description : In a filament type light bulb most of the electric power consumed appears as – (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Last Answer : (2) infra-red rays Explanation: When electricity is passed through the filament, the filament gets hot. Depending on the temperature of the filament, radiation is emitted from the filament. The ... energy converts into visible light and rest of it is emitted as heat or infrared radiation.

Luminance efficiency is minimum for a a. Fluorescent tube b. High wattage light bulb c. Mercury vapor lamp d. Low wattage light bulb

Description : Luminance efficiency is minimum for a a. Fluorescent tube b. High wattage light bulb c. Mercury vapor lamp d. Low wattage light bulb

Last Answer : d. Low wattage light bulb

Luminous efficiency is least for a A. mercury vapor lamp B. low-wattage light bulb C. high-wattage light bulb D. fluorescent tube

Description : Luminous efficiency is least for a A. mercury vapor lamp B. low-wattage light bulb C. high-wattage light bulb D. fluorescent tube

Last Answer : B. low-wattage light bulb

Luminance efficiency is minimum for a ∙ a. Fluorescent tube ∙ b. High wattage light bulb ∙ c. Mercury vapor lamp ∙ d. Low wattage light bulb

Description : Luminance efficiency is minimum for a ∙ a. Fluorescent tube ∙ b. High wattage light bulb ∙ c. Mercury vapor lamp ∙ d. Low wattage light bulb

Last Answer : d. Low wattage light bulb

In a filament type light bulb most of the electric power consumed appears as (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Description : In a filament type light bulb most of the electric power consumed appears as (1) visible light (2) infra-red rays (3) ultra-violet rays (4) fluorescent light

Last Answer : infra-red rays

How much energy does it take to run a 100 watt light bulb for 24 hours?

Description : How much energy does it take to run a 100 watt light bulb for 24 hours?

Last Answer : It is usually measured in kilowatt hours. 100 watt bulb X 24 hours= 2400 watts or 2.4 kilowatt hours.

A 60 watt light bulb runs for 5 seconds how much energy does it use?

Description : A 60 watt light bulb runs for 5 seconds how much energy does it use?

Last Answer : 300 j of energy

If the voltage supplied to the lighting circuit is 110 volts, how much current is used by a 100 watt light bulb? A. 0.08 amps B. 0.91 amps C. 1.10 amps D. 90.9 amps

Description : If the voltage supplied to the lighting circuit is 110 volts, how much current is used by a 100 watt light bulb? A. 0.08 amps B. 0.91 amps C. 1.10 amps D. 90.9 amps

Last Answer : Answer: B

A 100-watt light bulb is left on for 10 hours. Electricity is 10 cents per kilowatt-hour. How much did it cost to operate the light bulb?

Description : A 100-watt light bulb is left on for 10 hours. Electricity is 10 cents per kilowatt-hour. How much did it cost to operate the light bulb?

Last Answer : ANSWER: 10 CENTS

How much energy in consumed if a 100 watt light bulb is operated for 10 MINUTES?

Description : How much energy in consumed if a 100 watt light bulb is operated for 10 MINUTES?

Last Answer : ANSWER: 60,000 JOULES or 60kJ or 6X104J

What are the benefits of using LED lights over incandescent lights?

Description : What are the benefits of using LED lights over incandescent lights?

Last Answer : From what I could find in my research LED lights seem to be brighter and easier on your cars charging system. They are placed inside the headlamp against a silver backing that also helps make them brighter.

Can you damage your eyes if you look directly at a lit 100 watt bulb?

Description : Can you damage your eyes if you look directly at a lit 100 watt bulb?

Last Answer : It all depends on how far away you are, and how much ambient light there is already, But no, even holding your face eight inches away in a dark room won’t do any significant damage. Your pupils will contract so no damage is done.

If voltage across a bulb rated 220 volt-100 watt drops by `2.5 %` of its value, the percentage of the rated value by which the power would decrease is

Description : If voltage across a bulb rated 220 volt-100 watt drops by `2.5 %` of its value, the percentage of the rated value by which the power would decrease is

Last Answer : If voltage across a bulb rated 220 volt-100 watt drops by `2.5 %` of its value, the percentage of the rated value ... 20%` B. `2.5%` C. `5%` D. `10%`

What is the Cost to run a 5 watt led bulb for a year?

Description : What is the Cost to run a 5 watt led bulb for a year?

Last Answer : Need answer

How many lumens in a 150 watt bulb?

Description : How many lumens in a 150 watt bulb?

Last Answer : A 150 watt halogen bulb will give off somewhere around 2000lumens. These lights may give off up to about 2400 lumens.

According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in _____. A. 1 Hour B. 5 Hours C. 8 Hours D. 10 Hours

Description : According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in _____. A. 1 Hour B. 5 Hours C. 8 Hours D. 10 Hours

Last Answer : ANSWER: D

According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in _____. A. 1 Hour B. 5 Hours C. 8 Hours D. 10 Hours

Description : According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in _____. A. 1 Hour B. 5 Hours C. 8 Hours D. 10 Hours

Last Answer : ANSWER: D

According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in-----? A. 2 hours B. 5 hours C. 8 hours D. 10 hours (Answer)

Description : According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in-----? A. 2 hours B. 5 hours C. 8 hours D. 10 hours (Answer)

Last Answer : D. 10 hours (Answer)

According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in------? A. 1 hours B. 5 hours C. 10 hours (Answer) D. 15 hours

Description : According to the definition of 1 KWh, a 100 watt bulb consumes one unit of electricity in------? A. 1 hours B. 5 hours C. 10 hours (Answer) D. 15 hours

Last Answer : C. 10 hours (Answer)

Is the filament resistance lower or higher in a 500 watt light bulb than in a 100 watt light? Assume that both bulbs have been designed to operate at 110 volts.

Description : Is the filament resistance lower or higher in a 500 watt light bulb than in a 100 watt light? Assume that both bulbs have been designed to operate at 110 volts. 

Last Answer : ANSWER: LOWER

Used normally, a 150-watt, 120 volt light bulb requires how many amps of current?

Description : Used normally, a 150-watt, 120 volt light bulb requires how many amps of current?

Last Answer : ANSWER: 1.25 AMPS 

Who invented the electric bulb? (1) Thomas More (2) Thomas Alva Edison (3) James Watt (4) None of these

Description : Who invented the electric bulb? (1) Thomas More (2) Thomas Alva Edison (3) James Watt (4) None of these

Last Answer : Thomas Alva Edison

About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with

Description : About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy?  (A) 10 times longer (B) 100 times longer (C) Same time (D) None of the above

Last Answer : About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy?  (A) 10 times longer (B) 100 times longer (C) Same time (D) None of the above

A 100-watt light bulb turned on for 8 hours uses :

Description : A 100-watt light bulb turned on for 8 hours uses :  (A) 800 Wh (B) 0.8 kWh (C) 8 kWh (D) None of the above

Last Answer : A 100-watt light bulb turned on for 8 hours uses :  (A) 800 Wh (B) 0.8 kWh (C) 8 kWh (D) None of the above

Producer gas is obtained by  A. partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast  B. carbonisation of bituminous coal  C. passing steam over incandescent coke  D. passing air and a large amount of steam over waste coal at about 650°C

Description : Producer gas is obtained by  A. partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast  B. carbonisation of bituminous coal  C. passing steam over incandescent coke  D. passing air and a large amount of steam over waste coal at about 650°C

Last Answer : Answer: A

Producer gas is obtained by  A. partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast  B. carbonisation of bituminous coal  C. passing steam over incandescent coke  D. passing air and a large amount of steam over waste coal at about 650°C

Description : Producer gas is obtained by  A. partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast  B. carbonisation of bituminous coal  C. passing steam over incandescent coke  D. passing air and a large amount of steam over waste coal at about 650°C

Last Answer : Answer: A

Have you found any of the new 'non-incandescent' lights to your liking?

Description : Have you found any of the new 'non-incandescent' lights to your liking?

Last Answer : answer:I've used the curly compact fluorescents for many years. Whatever are the cheap ones at Lowe's or Home Depot. I see a box here that says Ecosmart brand Soft White. On the ... work in photography and we had to pay careful attention to lighting, fluorescent tubes presented a few difficulties.

Can I use an incandescent dimmer with LED lamps?

Description : Can I use an incandescent dimmer with LED lamps?

Last Answer : answer:The answer is . It depends. Some of the newer LED bulbs can be used with dimmers. They have circuits specifically designed to sense the reduced voltage and convert it to a pulse width modulated signal at the ... try it. If it does not work there I am sure you can find another place to put it.

How do you feel about the demise of incandescent light bulbs?

Description : How do you feel about the demise of incandescent light bulbs?

Last Answer : I, personally, don't like the yellow light of incandescent bulbs; I never did, and I've always tried to find the daylight versions of bulbs with the bluish tint. I know many people don't like ... bright light), but all the newer bulbs seem to be equivalent to 60W or 100W bulbs in light intensity.

New LED light bulbs: do they emit more or less heat than standard incandescent?

Description : New LED light bulbs: do they emit more or less heat than standard incandescent?

Last Answer : answer:I could not guarantee accuracy, but from what I know LED is cooler. You can find out for sure if you buy one of each, and take turns standing in from of each one.

Why can i only see dust motes in sunlight or incandescent lights?

Description : Why can i only see dust motes in sunlight or incandescent lights?

Last Answer : what are dust motes?

Are incandescent light bulbs being eliminated?

Description : Are incandescent light bulbs being eliminated?

Last Answer : not sure, seems LEDs are the wave of the future, but then, LED traffic lights don’t get hot enough to melt off the snow that sticks to them. I wouldn’t worry about it too much yet, even with Obama in power, the tree huggers don’t have the sort of power to ban incandescents.

What are the advantages to replaces regular incandescent light bulbs with CFL bulbs?

Description : What are the advantages to replaces regular incandescent light bulbs with CFL bulbs?

Last Answer : The CFL bulbs last for about 10,000 hours. The incandescent bulbs only last for about 1,500 hours. Most people won't go for the CFL because of the upfront costs but you'll save more money in the long run because they are also more energy efficient.

Is it really illegal to use incandescent bulbs in some countries?

Description : Is it really illegal to use incandescent bulbs in some countries?

Last Answer : Australia has outlawed incandescent bulbs and other countries intend to.