How many light bulbs are there in the world?

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According to fastcompany.com: "Last year, U.S. consumers spent about $1 billion to buy about 2 billion lightbulbs--5.5 million every day."
According to wsj.com: "The U.S., which has four billion electric lights using [incandescent] bulbs, represents about a third of the world market."
So, about 12 billion bulbs, worldwide.
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How many electrons are in the filament of a light bulb?

\n. \nI think you probably know that the flow of electrons causes the filament to heat up and glow when the electricity is switched on and you want to know the number of electrons in the electricity? Well, it doesn't work quite like that, the electrons are all in the electron shells of the tungs ( Full Answer )

What impact did the light bulb have on the world?

It killed the whale oil lamp and gas lighting industries. Itcreated massive levels of light pollution, making it nearlyimpossible to see stars at night from populated areas.

How many watts are in a light bulb?

It should be written on its box, and likely on the bulb (the globeor collar) as well. Not all bulbs have the same power (watts).

How many lumens are in a fluorescent light bulb?

The amount of lumens that are emitted from a fluorescent lamp is given approximately by the luminance (cd/m^2) times the length (m) times the diameter (m) times pi squared. Unfortunately, we don't usually know the luminance. The number of lumens varies greatly from bulb to bulb, across the variou ( Full Answer )

How many kilowatts does a light bulb use?

Thsi depends on the light bulb specification. For example if you buy a standard 60W light bulb from your supmarket then this will consume 0.06kilowatts. Its simple just divide the wattage stated on the light bulb by 1000 to give you the kilowatts

How many watts in a light bulb?

a normal light bulb is about sixty watts. if the light bulb is being fed a certain amount of bolts the watts can increase.

How many watts is your light bulb?

Every person has a different power of light bulb. In my room, I have a 7.5 and a whole bunch of 60s. The number of watts you choose for your light bulb depends on how bright you want your light to be. The higher the number, the brighter it is.

Worlds longest lasting light bulb?

Probably a LED bulb, because it has no wear-out components. For example, a tungsten bulb filament gets thinner and thinnerbecause tungsten sublimes off the filament and plates out on theglass envelope. CFL bulbs have hot cathodes with the same problem. LED bulbs only fail due to manufacturing defe ( Full Answer )

How many watts does a light bulb use?

Answer #1: Anywhere from 1 (power saver) to 200 (filament/halogen). ==== Answer #2: It depends on the bulb and its rating. Household incandescent bulbsgo from 2 watts to 200 wattsdepending on the design and materials used. ==== Answer #3: -- Incandescent bulbs are available ranging ( Full Answer )

How many amps is light bulb?

You just have to divide the watts by the voltage to find the amps.For example 60 watts on a 120 v system would take ½ amp.

How many types of light bulbs are there?

352 There are six different types of light bulbs invented as of December 27, 2012. They include the incandescent light bulb, the halogen light bulb, the fluorescent light bulb, the high-density discharge lamps, LEDs, and sodium lamps.

How many watts in a LED light bulb?

It differs just like the regular bulbs. What's great about LED light bulbs is that, you only need lesser watts than the normal because of its high efficiency. A typical low-current LED would be rated for 2 mA at about 2 V consumes about 4 mW (4 milli watts or .004 watts).

How has the light bulb benefited the world?

besides the norm..light inside at night...it also set up competition between tesla and Edison. tesla found alternating current....this allowed multiple lights to be lit with one power wire. Edison had direct current where every bulb needed its own wire. tesla won the bid to light the worlds fair...i ( Full Answer )

How has the light bulb impacted the world?

any where you look you will se a light bulb. This made things able to be done at night for more squezeen of work hours. probably the light bulb invented the night shift also.

How many light bulbs are sold in a year?

This is an impossible question to answer. Light bulbs are made and sold everywhere in the whole wide world.. This is an impossible question to answer. Light bulbs are made and sold everywhere in the whole wide world.

How many amps do light bulbs draw?

Depend on watt and voltage use of light bulbs. You can use this ohm's law formular to calculate the current draw on light bulbs.. I (current in amp) = P (watt)/ E (voltage). If 25W light bulb use in 115V AC (resident home) then current draw will be:. 25/115 = 0.22A or 22 miliamperes.. Hope this ( Full Answer )

How many kwh does a light bulb use?

This information is written on the glass of the bulb. Incandescent bulbs are usually sold as 40, 60, 100, and 150 watts. Energy saving bulbs use much less, for instance a 20 watt energy saving bulb will produce about as much light as a 100 watt incandescent bulb. The watt reading on the bulb is th ( Full Answer )

How many volts are there in a light bulb?

That depends on the type of light bulb and the application. Astandard house hold incandescent bulb draw in the neighborhood of120v or 240v ac depending on the country you are in.

How do you calculate how many volts are used to light a light bulb?

Normally that would be however many volts your house runs on. The US/Canada standard is 120 volts at 60 hertz, while most of Europe runs on 240 volts at 50 hertz. Keep in mind though there are all types of light bulbs that run on all voltages from 12 to 240. It should say the voltage on the bulb tho ( Full Answer )

How many lumens are in a 168 light bulb?

This varies widely between manufacturers, whether it's a "clear" bulb or a "frosted" bulb, and what type bulb as in incandescent, florescent , quartz, etc etc

How many watts in C7 light bulb?

A C7 bulb is typically very low wattage, sort of like the older style Christmas tree bulb. The wattage can vary, but usually in the range of 1 to 7 watts.

How many amps are there in a light bulb?

There are zero amps in a light bulb. The amperage that a bulb draws is dependant upon the voltage that is applied to the bulb and the wattage rating of the bulb. The equation for amperage is Amps = Watts/ Volts. When you establish what these parameters are, using the equation will give you the answe ( Full Answer )

How many amps per light bulb?

Look on the light bulb for the voltage and the power in watts. Thendivide the watts by the voltage and that gives the amps. Some CFL bulbs also state the current as well as the voltage andpower, which is because they can have a poor power factor.

How many tomato does it take to light a bulb?

sorry don't know ; im only eleven "I know" 1 supertomato or 3,003,494,560,327,650,836,140,520,347,257,345,803,465,876,324,065,086,237,248+ lemons dressed as tomatos ; ha I'm twelve

How many amps for a light bulb?

Find out the wattage and voltage of the bulb. Divide the watts bythe volts, that gives the amps.

How many batteries can light up bulbs?

This question cannot be answered without knowing at least the voltage of the light bulbs and also the voltage of the battery that is being asked about.

How many volts does a light bulb take?

Light bulbs are made according to where they will be used and what voltage is generally available for that location. In a house, 120 volts is the standard, so household bulbs are designed to work with 120 volts. A car however is almost always designed to use 12 volts. Therefore, that needs 12 volts. ( Full Answer )

How many watts is there in a light bulb?

600-1100 watts I've some 3volt bulbs that are rated at 80 mA, which means it uses draws 2.4 Watts. There are also small 7 watt 120v bulbs, usually used in night lights. The maximum load you can put on a 15A 120v circuit, without blowing a circuit breaker or fuse would be 1800 watts.

How many light bulbs can you light with a battery?

it takes 1 C type battery That answer is not really very helpful because the question doesn't say what the voltage of the light bulbs is! This question cannot be answered without knowing at least the voltage of the light bulbs and also the voltage of the battery that is being asked about.

How many killawatts are in a standard light bulb?

"A standard light bulb I would consider to be a 60 watt light bulb, and kilowatts are the amount of usage in a light bulb. From my research I have found that a standard 60 watt light bulb uses approximately 1.44 Kilowatts per hour."

How many volts in a little light bulb?

Small bulbs come in many different voltages. It will always be marked on the bulb and will only work correctly with that proper voltage applied.

How many atoms of mercury are in a light bulb?

Compact fluorescent light bulbs contain mercury. (For that reason,it is important to be very careful with a broken compactfluorescent bulb, because mercury is highly toxic.) Most other kinds of light bulbs do not contain any significantamount of mercury.

How many lumen's are in a A watt light bulb?

Ordinary incandescent bulbs produce 13 lumens per watt. For halogenbulbs, 17 lumens per watt; for CFLs 65 lumens per watt; for LEDs upto 100 lumens per watt have been claimed

How many filaments exist in a light bulb?

Most incandescent bulbs have one filament. Some halogen bulbsworking on 240 v have two filaments in series, which must be tosimplify manufacture of bulbs being made for 120 v and 240 v in thesame factory.