Lumens to Watts Conversion Chart
| Lumens | Incandescent Watts | Halogen Watts | LED Watts |
| 100 | 7 | 6 | 2 |
| 375 | 25 | 20 | 4 |
| 450 | 30 | 25 | 5 |
| 800 | 60 | 45 | 9 |
Aug 14 2022
| Lumens | Incandescent light bulb watts | Fluorescent / LED watts |
|---|---|---|
| 900 lm | 60 W | 15 W |
| 1125 lm | 75 W | 18.75 W |
| 1500 lm | 100 W | 25 W |
| 2250 lm | 150 W | 37.5 W |
How many lumens is equal to one watt?
lm/W stands for lumens per watt and is a unit measuring luminous efficacy and energy efficiency – how much visible light is produced for a given amount of electricity. As an example, a 60W incandescent light bulb may produce around 900 lumens, giving it a luminous effacy of 900/60 = 15 lm/W.
What is 800 lumens equal to in Watts?
from a typical LED lamp it is approximately 12 watts; 800 Lumen Conversions. Useful comparative measurements often asked: Lux. Lux can only be measured by knowing the distance and the area the lumens have to travel to. Foot-candle. 800 lumens is 800 candles.
How many lumens are in a 100-watt bulb?
- To replace a 100 watt (W) incandescent bulb, look for a bulb that gives you about 1600 lumens. …
- Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens
- Replace a 60W bulb with an energy-saving bulb that gives you about 800 lumens
- Replace a 40W bulb with an energy-saving bulb that gives you about 450 lumens.
How to convert watts to lumens (lm)?
Watts to lumens calculation formula The luminous flux ΦV in lumens (lm) is equal to the power P in watts (W), times the luminous efficacy η in lumens per watt (lm/W): ΦV(lm) = P(W) × η(lm/W) So lumens = watts × (lumens per watt) or lm = W × (lm/W) Example
What is 1 lumen equivalent to how much watt?
So a lumen represents at least 1/683 watts of visible light power, depending on the spectral distribution.
How bright is 1000 lumens in watts?
A 1000 lumen LED bulb is equivalent to a 75-watt incandescent light bulb.
How bright is 120 lumens in watts?
Lumens to Watts Comparison TableLumensLight bulbEnergy-saving lamp970 – 1100 lm75 watts19 watts1380 – 1600 lm100 watts23 watts1500 – 1800 lm120 watts32 watts2000 – 2500 lm150 watts40 watts3 more rows
What is 60W equivalent in lumens?
approximately 800 lumensFor example, a 60-watt incandescent light bulb gives approximately 800 lumens; therefore, to replace a 60-watt incandescent bulb with a LED bulb of the same brightness, one should purchase a LED bulb that also gives 800 lumens.
Is 2000 lumens too bright?
Is 2000 Lumens Bright Enough? A 2000 lumen LED is a very bright light source, and is likely to be too bright for some applications. For example, it would be too harsh for general room lighting where a more subtle level of illumination is required.
Is 1500 lumens too bright?
Lumens is the unit measurement of brightness, with 1 lumen equalling the brightness of 1 candle, so 1500 lumens have the brightness of 1500 candles. 1500 Lumens is a very good level of light for LED, CFL or incandescent lighting.
How many lumens is a 75-watt bulb?
1100 lumensBrightness: This is measured in lumens on the label. For example, 1100 lumens has brightness equivalent to a 75-watt bulb.
How many lumens is a 100w LED bulb?
about 1600 lumensThe current 100-watt incandescent bulb is the equivalent of about 1600 lumens.
How many lumens is a 40 watt bulb?
450 lumensWatts to Lumens – Energy Output to Brightness Produced 40-watt bulb produces 450 lumens of light. 60-watt bulb produces 800 lumens of light (most widely used in households) 75-watt bulb produces 1,100 lumens of light. 100-watt bulb produces 1,600 lumens of light.
Is 800 lumens very bright?
Lumens is the unit measurement of brightness, with 1 lumen equalling the brightness of 1 candle, so 800 lumens has the brightness of 800 candles. 800 Lumens is a good level of light for LED, CFL or incandescent lighting.
How many lumens is a 50 watt bulb?
Wattage has historically been the way of measuring light output for incandescent and halogen bulbs, so as long as you replaced your 50 Watt bulb with another 50 Watt you’d be fine….What Lumens do I need to replace a halogen GU10?Halogen WattageGU10 LED Lumens Alternative35 Watt300 – 350 lm50 Watt370 – 600 lmOver 50 Watt600 lm +1 more row
What is 15w LED equivalent to?
CFL (compact fluorescent lamp) light bulbs were the first real energy-efficient alternative to incandescent and halogen bulbs, using much less energy and lasting for much longer….LED equivalents to CFL light bulbs.CFL Light Bulb WattageLED Equivalent Wattage15 Watt9 Watt9 Watt5.5 Watt5 Watt3 Watt1 more row•Mar 9, 2018
Is 1000 lumens bright enough for a bedroom?
Kitchen: 3,000 to 4,000 lumens. Dining room: 3,000 to 4,000 lumens. Living room: 1,000 to 2,000 lumens. Bedroom: 1,000 to 2,000 lumens.
How many lumens is a 60 W lightbulb?
about 800 lumensLumens measure brightness. For example, a 60-watt incandescent bulb produces about 800 lumens of light.
Is 1000 lumens too bright for home defense?
Self-defense flashlights should have a minimum of 60 lumens, but twice that is a better place to start. This is enough brightness to search a building or temporarily blind an attacker.
Is 1000 lumens bright enough for a projector?
In a 100% light controlled room – 1000 to 1200 lumens should be sufficient. In a room with some ambient light, but no direct lighting on the space you plan to project the image – 1200 to 1400 lumens should be sufficient.
What does the lumen value mean?
The direction or beam angle of the emitted light is not taken into account. So the lumen value says nothing about how the light is diffused in the room. Old light bulbs and halogen lamps emit their light almost all around.
Why is it important to convert lumens to watts?
The conversion between lumens and watts is important if you want to replace old light sources with modern LED lamps. In case of LED lamps and luminaires, the specified wattage plays only a subordinate role. More important is the actual brightness, which is given in lumen. Here you will find all necessary information to calculate the needed lumens for your preferred brightness.
What is lumens in lighting?
The lumen value can be used to compare the brightness of different lamps, irrespective of efficiency and lighting technology used. The brightness in lumens is particularly important when using LED lamps. The Lumens to Watts Calculator helps you to compare the brightness of different light sources.
Why is a 5W LED lamp brighter than a 2nd?
This is possible because lamp A could achieve a better efficiency through higher quality components and therefore emits more light . For the comparability of LED lamps the brightness is indicated in lumens.
How many lumens does a 60 watt bulb have?
You will find the 60 watt bulb in the 3rd row of the 2nd column. It has a brightness of about 730 lumens. You will find the suitable LED replacement in the 5th column of the same row. With the same brightness, the LED only needs 7 to 9 watts, depending on manufacturer and model.
What is lumen in LED?
The unit lumen describes the luminous flux emitted by a lamp. This is the power emitted per second in the wave range of visible light. For LED luminaires and illuminants, this must always be stated in the product description. The lumen specification is often given in the short form lm.
How many lumens does a LED light need?
It has a brightness of about 800 lumens. You will find the suitable LED replacement in the 5th column of the same row. With the same brightness, the LED only needs 7 to 9 watts, depending on manufacturer and model.
How are lumens different from watts?
The Watt is a unit of power. The Lumen is a measurement of light output. For our lightbulbs, the lumen defines the perceived brightness of a specific bulb (such as an LED fixture).
What is the (lm/W) figure?
lm/W stands for lumens per watt and is a unit measuring luminous efficacy and energy efficiency – how much visible light is produced for a given amount of electricity. As an example, a 60W incandescent light bulb may produce around 900 lumens, giving it a luminous effacy of 900/60 = 15 lm/W.
What do you see when buying a light bulb?
When buying lightbulbs, you’ll see commonly see several measurements listed on the packaging. Perhaps the most recognisable one, which has existed for decades, is the wattage. However, times are achanging, and innovation has led us into updating how we rate and reference our bulbs. Enter the lumen.
Does a 75W light bulb produce more light than a 40W light bulb?
We knew that a 75W lightbulb produced more light than a 40W bulb. Over time, the technology involved in lightbulb manufacturing has improved to allow the production of more energy-efficient bulbs (CFL, LED). These bulbs produce the same levels of brightness (lumens) as older incandescent and halogen bulbs, but with a fraction of the power (watts).
What is the difference between watts and lumens?
The watt is a unit of power. By contrast, the lumen is a unit of brightness, a measure of the total quantity of visible light emitted by a light source.
How many lumens do I need?
More lumens means more light. So, if you previously bought incandescent bulbs measured in watts, here’s a handy guide showing how many lumens you might need and the wattage conversion. Note that these conversions use a set average figure for lumens per watt (lm/W), based upon data from the Energy Saving Trust and Energy Star. Actual light efficiency and output will vary by product. So, you’re recommended to check the ‘lighting facts’ label on the bulb packaging before purchase.
How many watts does an LED bulb use?
Let’s imagine that you are looking for an extremely bright bulb that emits 1,300 lumens. For an LED bulb, producing 1,300 lumens will require around 15 watts of power. However, for a less-efficient halogen bulb, over 60 watts of power are likely to be required to produce the same brightness.
Do light bulbs use less power?
Modern energy-efficient bulbs use much less power (wattage) when compared to their incandescent and fluorescent counterparts. As low-wattage bulbs become more commonplace, we need a better way of measuring their output. This is where the lumen comes in. Figures for lumens appear on the packaging of all light bulbs and allow us to compare the brightness (or dimness) of a bulb.
What is the difference between lumens and watts?
But while lumens tell you how bright your bulb is, watts tell you how high your bill will be. Lumens refer to the amount of light you can see, while watts calculate the amount of power that gets used up. These are the two main factors to keep in mind when you need to put a fresh light bulb in your socket.
How many lumens are in a 40 watt bulb?
With new light bulbs, shopping by lumens will be more important than shopping by watts when choosing which energy-efficient bulb to purchase.40-watt incandescent bulb = 450 lumens
How many lumens does a Sylvania Super Saver CFL have?
Manufacturers are also changing the look of their overall packaging to help even more. For instance, the CFL in the photo on the right says the Sylvania Super Saver CFL is a replacement for a 100-watt bulb with a lumen (brightness) output of 1500. The energy used is 24 watts, saving you $60 in energy costs and will last for 7 years. The color is a soft white, which is similar to soft white incandescent bulbs.
How to tell watts and volts?
It helps to be aware of the differences in measurement. Voltage is the amount of electricity that passes through your circuits at any given time. Watts are the amount of electricity any device uses up in a second. Lumens describe the volume of visible light you can see. So – for example – a wax candle has lumens, but it has no watts or volts because it doesn’t use electricity. Check for: 1 Volts = Amount of electricity available (power supply) 2 Watts = Amount of electricity used per second (power usage) 3 Lumens = Amount of light you can actually see (brightness) 4 Temperature = Warmth or coolness of the light color (measured in degrees kelvin)
Why does a candle have no watts?
So – for example – a wax candle has lumens, but it has no watts or volts because it doesn’t use electricity. Check for: Volts = Amount of electricity available (power supply) Watts = Amount of electricity used per second (power usage) Lumens = Amount of light you can actually see (brightness)
What are the different types of bulbs?
There are four common categories – standard tungsten bulbs, halogen bulbs, energy-saving fluorescents, and LEDs. Standard bulbs are the old type, where tungsten filaments are heated to release light.
Ampoules à incandescence et lumens
La référence pour dire “équivalent …W”, c’est l’ancienne lampe à incandescence dont l’interdiction à la vente a commencé en 2009. Les lampes à incandescence n’existaient que sous quelques modèles de puissance et offraient presque toujours la même luminosité en lumens (malgré leurs formes variées, le morceau de filament était toujours le même).
Exemples d’ampoules à LED ou économie d’énergie (basse consommation)
Vous venez d’acheter une ampoule LED 5 W 340 lumens équivalent 40 W ? Eh bien cette ampoule LED brillera un peu moins qu’une ampoule 40 W d’autrefois ! En effet, l’ampoule LED ne fait “que” 340 lumens, ce qui correspond plutôt à 36 W… L’indication “équivalent 40 W” ou même “5 W = 40 W” est commerciale.
Conclusion sur l’équivalence lumens et Watts
Quand on choisit une ampoule LED ou basse consommation, il faut se fier à la luminosité indiquée en lumens et non à l’équivalence indiquée sur l’emballage de l’ampoule. Cette équivalence va souvent exagérer un peu la luminosité.
