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Having analysed the characteristics and energy emissions of the various types of lamps, all that remains is to understand how to calculate the lumens needed in a room. Lighting in a living room or bedroom, as we saw earlier, requires lower levels of light than required, for example, in an office environment.
Determining the lighting levels for each room is useful both for convenience and efficiency. Generally, you should use bright lighting to illuminate the most practical rooms , where activities that need excellent light are carried out, such as the kitchen or the dining room.
Once you have decided how bright a room must be, based on how it is used, calculating lumen levels is a fairly simple task that requires 2 main steps.
The first step is to measure the length and width of the room using a tape measure, then multiply the two values to determine the square footage of the room. For example, a room 10 meters high and 15 meters wide will have an area of square meters. The next step is to examine the specific area you intend to illuminate , to determine the level of illumination; there are standards, which vary according to the reference State, that establish the ideal lighting level for each structure and environment.
You can review the current regulations for the environment you intend to illuminate by visiting this website. The luminous flux is nothing but the power of the light produced by a lamp , which corresponds to the total lumens produced by a light source. For example, a great LED lamp can reach at least 60 lumens and can even go up to 90 and lumens, in some cases. The current regulations indicate that to illuminate an office , for example, we recommend about lumens per square meter of surface.
Therefore, if your goal is to illuminate an area used as an office whose surface is square meters, the light potency you will need will be around 30,, lumens.
At this point, you have all the data and factors you need to calculate the values concerning the illumination of any environment. Always remember that the intensity of light in each setting depends on its intended use. Therefore, before making all the necessary calculations, define the atmosphere you want to give to each space. Once this has been determined, all you have to do is continue following the indications analysed in this article. Outdoor Design , Indoor Design.
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Sign in or create an account OK Don't show again. Lux to Lumens Calculator. Beam Width:. Lux is used to measure the amount of light output in a given area - one lux is equal to one lumen per square meter. It enables us to measure the total "amount" of visible light present and the intensity of the illumination on a surface.
Thus, it is important in what direction the light source shines. This value is irrespective of the number of light sources it uses, the colour or the structure where the light shines. If the amount of Lux is indicated by a lamp, it is usually in the centre of the beam where the light intensity is highest. The difference between lumen and lux is that the lux takes into account the area over which the luminous flux lumens is spread. A flux of lumens, concentrated into an area of one square metre, lights up that square metre with an illuminance of Lux.
A Lumen light source illuminates 1 square meter with Lux. The same light source that needs to illuminate 10 square meters, which illuminates this area with only 50 Lux.
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