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In this context, Watts are a measure of electrical power and lumens a measure of light output. So, depending on the efficiency of your light source the equivalency will vary dramatically. For example, a 60 watt conventional light bulb typically gives off 800 lumens. A frosted 60 watt bulb may only give off 500 lumens. A 13 watt CFL will give off that same 800 lumens, which is why 13 watt CFLs are often (erroneously) called 60 watt bulbs.
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Does a lighting fixture use watts or is it the bulb that uses watts because my fixture says 660 watts but the CFL bulb is only 23 watts?
The watts determine how much energy is taken and how much heat is produced. You need to look at the lumens to see how much light is produced. CFLs produce 4-5 times more lumens than incandescent bulbs, or 3-4 times more than halogens, for the same power in watts.
Low voltage lights equivalent to 110 volt lights in watts?
Watts are calculated by multiplying the voltage by the amperage. To calculate the wattage you need both these numbers
What is equivalent lumens of 40 watt incandesent bulb to led light?
Light is a little complicated because various devices for producing it have various efficiencies. Light is measured in lumens. Older incandescent lamps produce 10-15 lumens per watt of electrical power. Halogen lamps produce maybe 20 lumens per watt and lasted much longer. Several years ago the best LEDs were also 20 lumens per watt. Now the best white LEDs are 5 to 10 times better than incandescent lamps, and they last for a decade or more. Expect almost all lamps to be LEDs in the next few years.
How many lumens do you need to replace a 400 watt halogen with a led flood light?
From halogen to LED you can divide by 4 to find the equivalent. Therefore an 80 watt LED would do the job.
Compare lumen's per watt in incandescent vs LED?
To determine the answer you need to know the efficacy (luminous flux) of the LED light which may range from 30-90. You can use 60 for an average. Multiply the watts from an incandescent bulb - what you are familiar with - say 40 watts x the LED luminous flux 60 = comparable lumens of about 2400 to see the same brightness.
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.
Does a lighting fixture use watts or is it the bulb that uses watts because my fixture says 660 watts but the CFL bulb is only 23 watts?
The watts determine how much energy is taken and how much heat is produced. You need to look at the lumens to see how much light is produced. CFLs produce 4-5 times more lumens than incandescent bulbs, or 3-4 times more than halogens, for the same power in watts.
What is the lumen's for a 500w halogen light?
Wikpedia says that halogen lamps produce about 19-20 lumens/watt. If you have a 500W lamp then you get 9500-10000 lumens.
How many lumens to equal a watt?
Incandescent bulbs: 10 lumens per watt Halogens: 13 lumens per watt CFLs: 50 lumens per watt A useful bulb to light a small room is 600 lumens, so that would need a 60-watt incandescent, or a 45-watt halogen, or a 12-watt CFL energy-saving bulb. The best CFL bulbs are the spiral ones.
Low voltage lights equivalent to 110 volt lights in watts?
Watts are calculated by multiplying the voltage by the amperage. To calculate the wattage you need both these numbers
What is equivalent lumens of 40 watt incandesent bulb to led light?
Light is a little complicated because various devices for producing it have various efficiencies. Light is measured in lumens. Older incandescent lamps produce 10-15 lumens per watt of electrical power. Halogen lamps produce maybe 20 lumens per watt and lasted much longer. Several years ago the best LEDs were also 20 lumens per watt. Now the best white LEDs are 5 to 10 times better than incandescent lamps, and they last for a decade or more. Expect almost all lamps to be LEDs in the next few years.
Formula to figure out watts when you have voltage and mAh?
Voltage times current is equivalent to power (watts). You need to keep in mind that milli amp hours (mAh) is amps with a unit of time - it's a specific amount of current for 1 hour. Watts is an instananeous measurement; watt hours is the equivalent you should be looking for. there is no direct conversion for watts from voltage and mAh.
How many lumens do you need to replace a 400 watt halogen with a led flood light?
From halogen to LED you can divide by 4 to find the equivalent. Therefore an 80 watt LED would do the job.
Compare lumen's per watt in incandescent vs LED?
To determine the answer you need to know the efficacy (luminous flux) of the LED light which may range from 30-90. You can use 60 for an average. Multiply the watts from an incandescent bulb - what you are familiar with - say 40 watts x the LED luminous flux 60 = comparable lumens of about 2400 to see the same brightness.
What is the equivalent of 200watts in amperes?
You need to know the voltage also, then it's a simple bit of maths: Watts = Volts x Amps.
How many watts does a small car need?
Ignition 30 watts, fans 30 watts, driving lights 30 watts, headlights 100 watts. Total about 200 watts.
How many watts need for seven ampere's and 120 volt's?
770 watts.
