To be really sure whether the desired illuminance is achieved with the installed luminaires, it can be checked with a lux meter at the appropriate distance from the light source. The online calculator will help you to find a reference point for your lighting design. Now you know the correlation between lux and lumens in connection with distance and angle. In order to ensure homogeneous lighting with a corresponding lux value, a professional light planning should be involved. The positions of the individual lights are chosen in a way that the light cones overlap. So the illuminance in the light circle is not homogeneous.įor the complete illumination of rooms or specific areas with a minimum illumination intensity, in most cases several LED luminaires are used. Especially in the peripheral areas, the luminous intensity usually decreases. When using a single light source, it should be noted that the light distribution of many LED spotlights does not always have to be uniform within the beam angle. After a click on the Calculate button you will see the size of the illuminated area and the lux value. Select Lumen to Lux in the calculator and enter 470 as the lumen value, 110 as the beam angle and 6.5 for the distance. You want to find out how much lux the table is illuminated with. Light appearance, measured by correlated color temperature (CCT) on the Kelvin (K) scale, from warm to cool.Example: A spotlight with a beam angle of 110° and a light output of 470 lumens is mounted at a height of 6.5 ft above a table.It would be better to have two lamps with 500 Lumen each for more complete illumination. I have to say, it’s not going to be overly impressive, but in complete darkness, it works fine. Estimated yearly energy cost (similar to the EnergyGuide label) You need to have at least 7 feet of space to project this light onto the ground with a 120-degree angled beam.The label includes the following information: Like the helpful nutrition label on food products, the Lighting Facts label helps consumers understand what they are really purchasing. It helps people buy the lightbulbs that are right for them. To help consumers, the Federal Trade Commission requires manufacturers to include a product label for light bulbs on the package. What Should You Look For on the Package? The Lighting Facts Label Replace a 40W bulb with an energy-saving bulb that gives you about 450 lumens.Replace a 60W bulb with an energy-saving bulb that gives you about 800 lumens.Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens.If you want something dimmer, go for fewer lumens if you prefer brighter light, look for more lumens. Testors F117A Stealth Airplane 1:48 Scale Diecast Metal Model Kit NEW. To replace a 100 watt (W) incandescent bulb, look for a bulb that gives you about 1600 lumens. Husky 1200 Lumens Broad Range Utility LED Light Portable Spot Flood Light Stand. The brightness, or lumen levels, of the lights in your home may vary widely, so here's a rule of thumb: So when buying light bulbs, think lumens, not watts. Lumens let you buy the amount of light you want. More lumens means it's a brighter light fewer lumens means it's a dimmer light. Figures for lumens appear on the packaging of all light bulbs and allow us to compare the brightness (or dimness) of a bulb. Lumens measure how much light you are getting from a bulb. A lumen is a measure of the amount of brightness of a lightbulb - the higher the number of lumens, the brighter the lightbulb. When you're shopping for light bulbs, think about the brightness you want by comparing lumens instead of watts. The lumens scale indicates the brightness of a bulb and should be used when selecting your new LED. But now it makes more sense to buy lights based on how much light they provide. In the past, we bought light bulbs based on how much energy, or watts, they use. This label makes it easy to compare bulb brightness, color, life, and estimated operating cost for the year. Enter the value you want to convert (foot-candle). You can also go to the universal conversion page. To switch the unit simply find the one you want on the page and click it. When you're shopping for light bulbs, compare lumens to be sure you're getting the amount of light, or level of brightness, you want. This is a conversion chart for foot-candle (Photography units).
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