11/13/2023 0 Comments Difference lux lumen![]() ![]() A general 100-watt light bulb outputs 1600 Lumens of light. Lumens are used to measure the brightness of the light in LED lighting. ![]() Once you know the number of Lumens, assuming you know what size screen you want to use, you’ll be able to compare the relative brightness of different projectors well enough to choose one for your home cinema!Ĭheck out our other guides to learn more.The more Lumens a bulb has, the brighter the light is. If they are not displayed by the manufacturer or merchant, but Lux are, this is a red flag that they are playing fast and loose with the figures. When you are buying a projector, focus first on the Lumens. ![]() Whereas Lumens are an objective measurement, Lux is dependant on the size of the screen and the number of Lumens. The problem with this is that without specifying the size of the projection surface, “Lux” is vague and even meaningless. If you go on to Amazon or Ebay – you’ll see a lot of projectors boating of their Lux measurement like the one below. So which measure should you focus on when choosing a projector? The relationship between Lumens and Lux is simple – 1 Lux = 1 Lumen per square meter.įor example – if a projector is 1000 lumens, and the screen size is to square meters, the screen will be illuminated to 100/10 – 100 Lux. Lux measures light intensity on a specific area. Whereas Lumens measures the total light that the projector lamp/LED/Laser produces, Lux measures illuminance on a surface. The more lumens, the greater the brightness. In the context of projectors – the lumen count refers to the light emitted by the lamp, laser, or LED that powers the projector. These days, you’ll see lumens on the packaging of household lightbulbs – since the advent of LED lighting made the old Wattage measure obsolete. Lightbulbs, LEDs, Candles – the brightness of each can be measured in Lumens. Lumens are used to measure the total light emitted by a source, in all directions. For example in the above example it may have 7500 lumens, but you should look up the specification and model independently while taking everything with a pinch of salt. We explained in our Guide to Lumens how you should look for ANSI Lumens, because manufacturers often use a bit of “artistic license” with their Lumen claims, and you can’t trust them. You’ll see them all the time like in the example below. If you’ve ever shopped around for projectors online, you’re probably familiar with the term. Lux is a measure of the total light that falls on a surface.Lumens are a measure of luminous flux, which means the total light emitted by a source in all directions.Lux and Lumens both measure brightness, but in a different context. In this very short guide we’re going to break down all you need to know. What do they mean though? And what is the difference between Lux and Lumens? Those marketing projectors shout about Lux and Lumens from the rooftops (often exaggerating them), and you can’t read about different projectors without hearing the terms over and over again. Lumens vs Lux is an important distinction to understand when checking out projectors.īoth are often cited in product descriptions to describe the brightness of a projector. ![]()
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