![]() For example, if you typically purchase 60W incandescent bulbs, which produce about 700-800 lumens, consider purchasing a lower energy alternative like a 42W halogen bulb, 12W CFL, or even a 10W LED bulb to achieve the same brightness.Ĭlick the equivalent wattage in the lumens vs. ![]() Use this chart to determine how many lumens you’ll need from your next light bulb. With energy-efficient lighting like LEDs and CFLs, how many lumens are in a 60W bulb or 100W bulb depends on the lumen output of the bulb, not its energy use.ĭon’t despair! Measuring and labelling light output instead of energy use actually makes it easier for you to find the right energy-efficient bulb for your space. How many lumens are in a watt? Because lumens measure brightness and watts measure energy output, there is no simple method for converting wattage to lumens. 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. Instead of focusing on wattage, which measures power or energy use, manufacturers are indicating the brightness of their energy-efficient bulbs according to lumens, which measure light output. ![]() But as energy-efficient, low-watt light bulbs like CFLs and LEDs have become readily available, watts have become an unreliable metric for selecting bulbs. Learn more at are the new unit of measurement for light bulbsįor decades, we’ve been buying light bulbs according to wattage. To learn more about LED lights and lumens, or to get an assessment on LEDs in your home, call 13 LEDS today. Using the approximations above, if you want to replace 60W bulbs with LED bulbs that emit comparable light, you’ll need to choose those that have 800 lumens. Until you’re more comfortable using lumens to gauge how much light a bulb will produce, use these approximations: To choose the most energy efficient bulb for your needs, find ones that have the light output that you need, then choose the one that has the lowest wattage. Using these two numbers you can easily identify how bright a light will be and how much energy it will consume. Compare the lumen numbers to see if the lightbulbs will give off a similar amount of light, then look at the wattage requirements to see how much energy each bulb will use. You’ll see the number of lumens produced as well as the wattage of the bulb. To compare LED bulbs with other types of light bulbs look at the packaging. The higher the lumens, the more light the bulb emits, but a high lumen value does not necessarily equate to a high wattage need. Lumens are a more accurate indicator of light because it tells you how the bulb performs, as opposed to how much energy it consumes (watts). Lumens measure the amount of light emitted by a bulb, regardless of the type of bulb or how much wattage it uses. To help consumers better compare light across the different types of bulbs, light bulb manufacturers are including a lumens (lms) number on the packaging. All you know is that the 60W will use the most power. You can’t easily compare a 60W incandescent with a 9W LED with a 12W halogen and know which one will be brighter. LEDs, halogens, and CFLs are all more efficient than incandescents, but those efficiencies differ from bulb type to bulb type. Today there are so many different types of light bulbs to choose from that it’s hard to use wattage ratings to figure out how bright a light bulb will be. We all know that a 100W bulb is far brighter than a 40W bulb. It is easy to estimate how bright an incandescent bulb is the higher the wattage rating, the more light emitted. Watts do not tell you how bright the bulb is, lumens do. Lumens measure the total amount of light emitted by the bulb while watts measure the amount of power consumed by the bulb. The reason this is such a confusing concept is because lumens and watts measure different things. One of the most common questions that consumers have about LED lighting is how lumens compare to the wattage rating, watts being something that we are all so used to seeing on incandescent bulb packaging.
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