You divide the lumens of that bulb over the room area to get this number. The color of the light also matters a lot when reading in bed before sleeping. This is also known as “brightness” or “light output.” Your reference point: A standard 100-watt incandescent light bulb produces about 1,500 – 1,700 lumens.WattsNot a measure of brightness; instead, it’s a measure of how much electricity (or energy) a bulb consumes to reach its claimed brightness. But, all that water is not useful, if it is not directed properly to the target. In a nutshell, You only need 25 to 50 lumens (per square metre) on your book surface to read without eye-strain. Wir und unsere Partner nutzen Cookies und ähnliche Technik, um Daten auf Ihrem Gerät zu speichern und/oder darauf zuzugreifen, für folgende Zwecke: um personalisierte Werbung und Inhalte zu zeigen, zur Messung von Anzeigen und Inhalten, um mehr über die Zielgruppe zu erfahren sowie für die Entwicklung von Produkten. Examples of these kinds of light sources are torch lights, book lights, and reading lamps. It is because, you get a brighter book to read by spending less electricity and without flooding the whole room with the light, which will also disturb others sleeping in the room. More precisely, you need 25- 50 lux of illuminance. Because lumens measure brightness and watts measure energy output, there is no simple method for converting wattage to lumens. Lighting requirements/needs vary depending on the type of room being lit. but also check, How much focused those lumens are? For example, if you want to wash your car, or water your plants, you would want the water to flow in the direction you want. Is 200 lumens per square feet or 18.5 square metre or 18.5 lux is bright enough for reading? What is a Lumen? If you are looking for the brightest LED bulb for floodlights for example, simply find the one with the most lumens. It means, those lumens of light should be focused on your reading area. It’s also about the quality of the reflector that’s tucked inside of your flashlight because this is what influences how the light is dispersed. If you want to estimate, How bright your reading area would be using a particular bulb?, then not only look for. So, if you have that in mind, 200 lumens per square feet will be dimmer. It will make it easier to understand the concept. As I said, you only need around 25 – 50 lumens per square metre focus properly on to your book reading comfortably. Reading lights that provide enough lumens on your book surface for easy reading. There are buttons on the head or the base of the book light that you click to change the lumens, hence brightness. While you may be used to comparing light bulbs and products by wattage, a new unit of measurement has taken the spotlight: the lumen. Most of the best book lights have the option to also adjust the brightness, by adjusting the lumens. The lumens are the same, but your eyes perceive it differently. Converting Lumens to Watts. Yes, watts effects lumens, and hence brightness. There are also some very lightweight book lights that does not weight your books down. Just look how many lumens it is producing, and how the focused they will be on your book. It is because, both of those will focus the light in a same way. Your reading area must be well lit with a soft and even light. But there is more to it. A quick G@@jle search gave us this -> For example, when you are indoors, most artificial light is around 400 to 600 lumens. is a participant in the amazon services llc associates program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to It is measured in lux, and depends on how much focused that light is? Für nähere Informationen zur Nutzung Ihrer Daten lesen Sie bitte unsere Datenschutzerklärung und Cookie-Richtlinie. If you have a side table near your bed, you mostly read at the same place, and you do not want something to be attached to your book or Kindle, then bedside lamps are a good option for you. Although it’s difficult to compare watts and lumens directly, we want to share some guidelines on understanding the relationship between them. Usually, 25 to 50 lumens/square metres are enough. Not surprisingly, more lumens equals more brightness. Once installed, you just turn the light on and start reading. Floor lamps are useful if you also need an ambient light in the room, in addition to the focused light on your reading area. WHAT IS A LUMEN? Damit Verizon Media und unsere Partner Ihre personenbezogenen Daten verarbeiten können, wählen Sie bitte 'Ich stimme zu.' It happens when light sources are designed to focus all the lumens to one direction, and lighten up that area efficiently. Book lights are cheap, so you can also get a book light along-with a bedside lamp, and use whichever works best for you. Bright enough for most uses, including searching for people and animals over 50 meters away (depends on how wide the beam is), comfortably lighting up a small room by bouncing the light off the ceiling, bicycle lamp. But what are lumens, exactly? It is because, these are portable mini lights that is easy to carry where ever you go. So, what is a lumen? I hope you get the point. 600 lumens is about as bright as the sun on a clear day! There might be shadows and reflections, which decrease or disperse the light coming onto your book. The only thing I don’t see mentioned, and it may be in another article, is the color temperature. An average 2x AA flashlight will give you 1 to 2 hours of runtime. Think of lumens as a "new" way of knowing how bright a lamp is. A more focused, less lumens, and less wattage book light is better than the less focused, more lumens, and more wattage book light. So while we may be accustomed to shopping for bulbs according to wattage, lumens are actually a more accurate measurement of how bright your light will be. On the contrary, you can have a tiny clip on book light that feels very bright, but only produces a few lumens only. LEDs are very efficient is utilizing electricity, so they produce more lumens per watt as compared to incandescent or CFL bulbs. Dazu gehört der Widerspruch gegen die Verarbeitung Ihrer Daten durch Partner für deren berechtigte Interessen. Here are the lights that produce focused light that is good for reading in bed. If you think that you need a floor lamp and bedside lamps, then get the bedside lamps that also convert to the floor lamps. I use a 250 lumen tac light. If you go outside on a sunny day, the brightness ranges from about 1,000 lumens in the shade to more than 6,000 lumens on a large stretch of concrete, like a highway. What’s the Difference Between it and a Watt? Lumens = Light Output. If you want to read in bed without eye-strain then a clip on rechargeable book light should be your first option. Hope this helped. which color is best for reading at night, White or yellow? It is because it designed to produce a more dispersed light that illuminates a large area. It is possible that a 100 watt incandescent bulb produces less lumens as compared to a 10 watt LED produces more Lumens. Are incandescent or LED lights better for reading in bed? You also need to take care of the how efficiently the bulb is utilizing the power. If that is the case, then the answer is, you cannot guarantee that there will be  25 lumens per meter square will coming to your book.

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