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A lumen is a unit of luminous flux, which is the amount of light emitted per unit time. A watt is a unit of power (such as electrical power), which is the amount of energy consumed per unit time.

Light bulbs have ratings in watts, which measures how much electricity they use, and lumens, which measures how much light they give off. For the same kind of bulb (incandescent, fluorescent, LED, etc.), a bulb with a higher wattage will produce more lumens. However, a 10-watt LED or compact fluorescent bulb may produce more lumens than a 40-watt incandescent bulb.

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Related Questions

How many watts are equivalent to one lumen?

One lumen is equivalent to approximately 0.001496 watts.


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25w equivalent


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The more watts your oven has, the faster the temperature increases.


How many lumen will a 100 watt incandescent bulb produce?

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How many watts of led equals 40 watts of fluorescent?

Watts are a unit of power. So 40 watts of power to an LED are the same as 40 watts of power to a fluorescent. Sometimes LEDs are rated in equivalent watts which is an attempt to relate watts to brightness or lumens. You need to compare lumens and the "temperature" of the bulbs in Kelvin to get the comparison I think you are looking for.


How many watts does an energy saving light bulb use?

An energy-saving light bulb typically uses between 5-15 watts of power, depending on the brightness and type of bulb. This is significantly less than traditional incandescent bulbs, which can use 60 watts or more for the same amount of light output.


What is the formula for watts using mph?

There is none. Electricity and miles per hour do not relate.


What does A 170 lumen flashlight equal in a watt flashlight?

The energy consumption of a modern Cree XP-G or XM-L based flashlight with 170 lumen output can be as low as 1.4 watts with 120 and more lumen per watt. The light output will be approximately equal to a 20 W tungsten incandescent light bulb or a 10 W halogen light.


How many Lumen's can a 60 watt bulb produce?

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How do you spell lumen?

Lumen


How many lumen's is a 1156 automotive bulb?

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How do you work out lumen's?

To calculate lumens, you need to know the luminous efficacy of the light source in lumens per watt (lm/W) and the power consumption in watts. Multiply the luminous efficacy by the power consumption to get the total lumens produced by the light source. For example, if a 10-watt LED bulb has a luminous efficacy of 80 lm/W, the total lumen output would be 800 lumens (10 watts * 80 lm/W).