![]() 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. In other words, if you need to replace a 75W standard bulb, you can divide that number by 5 or 6 and you’ll get the general range of 12-15W LED bulb as a replacement.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. ![]() ![]() ![]() So a simple way to find an LED comparable would be to use this 5:1 or 6:1 ratio. In comparison to standard incandescent lighting, LEDs are 5-6 times more efficient. As a general rule of thumb, LED lighting produces approximately 70-100 lumens per watt. How do I determine an equivalent LED replacement?īecause lumens measure brightness and watts measure energy output, there isn’t a simple formula for converting wattage to lumens. ![]() With the introduction of Compact Fluorescent Lighting and LED Lighting, watts are no longer a reliable metric for energy usage and brightness.īecause LED lighting produces more light at lower wattage levels, using lumens is a more accurate way to measure how bright your light bulb will be. Not only did this measure how much energy was used, but also corresponded to the brightness of the bulb. Before LED lighting, energy consumption was generally based on how many watts a bulb used. ![]()
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