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That depends a LOT on the technology used - some technologies are much more efficient than other (converting a higher percentage of the power used into visible light).
The answer to this question is dependent upon what type of light bulb it is. Each types of bulb has its own efficiency in Lumens per Watt.
The formula for this question is: LM = W X (LM/W)
where LM = Luminous Flux in Lumens
W = Watts
(LM/W) = Efficiency in Lumens per Watt
The following are two examples for incandescent and compact fluorescent bulbs.
Example #1 60W incandescent bulb.
Therefore applying this formula: LM = 60 X 15
= 900
Example #2 60W compact fluorescent bulb.
LM = 60 X 60
= 3600
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How many joules are there in a led bulb?
Since LED bulbs come in a variety of sizes there is no one answer. If we consider Watts then LED bulbs from 1 to 12 Watts are common. The higher end of quality LED lights that are commercially produced generally yield about 80 lumens per Watt. This means for a 10 Watt LED bulb your looking at 800 Lumens. This is higher than both CFL and incandescent lights. LED bulbs can save money in the long run due to the lower energy use, but they require a larger up front investment. See below for a link to an example of an LED bulb that produces 460 lumens.
How are CFL light bulbs better than regular light bulbs?
A CFL uses 65% less energy and can reduce your power bill as well.A longer answerSince major improvements in the design of Compact Fluorescent Lamps (CFLs) from 1990 onwards, by using a CFL light bulb 80% energy of the energy can be saved compared to the energy that is needed to produce a given amount of artificial light using conventional incandescent filament bulbs.In other words, to produce the same amount of visible light, a modern CFL uses only 1/5 (one fifth) of the power that an incandescent filament bulb uses.For example, a 20 watt CFL bulb produces similar light to a 100 watt incandescent filament bulb and a 30 watt CFL matches the light output of a 150 watt incandescent filament bulb.CFLs also have a much longer useful life-span, thus avoiding the need to change them as often as incandescent light bulbs.Another opinionThere are issues with the additional power used to manufacture CFL bulbs and the toxic chemicals inside these units.But, whilst they certainly do save energy for the end user, their drawbacks are that they probably use more energy overall and their manufacture causes more pollution.
How many joules does it take to light a 60 watt light bulb for an hour?
60W = 60J/sec = 3600J/min = 216,000J/hr or 60W x 1hr = 0.6kWh = Your kWh rate * 0.6 If my kWh rate is $0.05 then it costs $0.03 to power a 60W bulb for an hour, other charges may apply in your area, you will have to look at your bill
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.
Can you use a higher watt light bulb instead of a lower watt light bulb E.g. A lamp uses 9w light bulbs can I use a 13 watt one?
9w to 13w is not a big jump, but you need to check the fuse rating, which will have been chosen to limit the current to a safe level for the wiring, to see if the extra current is still within the fuse rating. Is this in an auto? If at 12v the current will rise from 0.75 amp to 1.08 amp. You should also check the lamp holder to see if there is a power limit stamped or printed on it.
What is the equivalent of 750 lumens in incandescent light bulb?
Approximately, 750 lumens is equivalent to a 60-watt incandescent light bulb.
How bright is 1000 lumens?
It is equivalent to a 75 watt incandescent bulb
What is the percentage of light output between CFL bulbs and an incandescent bulb?
Incandescent: 10-12 lumens per watt CFL: 50 lumens per watt.
How many lux in a 1000 watt bulb?
Incandescent bulbs give about 10 lumens of light per watt of electric power Halogens give about 13 lumens per watt CFLs give about 50 lumens per watt So it depends on the type of bulb.
How many lumens are in a 150 watt incandescent light bulb?
A 150 watt halogen bulb will give off somewhere around 2000 lumens. These lights may give off up to about 2400 lumens.
How many lumens are in a 1000 watt incondescent light bulb?
A 1,000 watt is 15,000 lumens. A 100 watt bulb is 1,500 lumens.
Is 650 lumen's bright?
Yes, 650 lumens is considered bright for most indoor lighting situations. It is equivalent to about a 50-60 watt incandescent bulb and can provide ample illumination for a room.
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 is the lumen output for a 35W halogen?
It varies from about 600 to 1100 lumens. Typically the higher the lumens output, the shorter the lifespan of the globe. Have a look at this list of globes for purchase whih shows wattage and lumens: http://1000bulbs.com/category/75-watt-incandescent-standard-shape-light-bulbs/
How many lumen in a 60 w light bulb?
A 60-watt incandescent light bulb typically produces around 800-900 lumens. However, this can vary depending on the specific type and brand of the bulb. LED and CFL bulbs can provide the same amount of light output (lumens) as a 60-watt incandescent bulb while consuming less energy.
How many lumens in a 100 watt incondescent lamp?
A 100 watt incandescent bulb typically produces around 1600 lumens of light. However, it's important to note that incandescent bulbs are being phased out in favor of more energy-efficient options like LEDs.
How fast do the lumens decrease in an incandescent bulb?
Very quickly, less than 1/10 second. Incandescent bulbs produce only about 10 lumens per watt of power, with the halogen type producing abiut 1 lumens/watt. Low-energy bulbs and LEDs produce about 50-60 lumens per watt.
