![]() Lighting experts currently recommend only buying Energy STAR-qualified LED light bulbs, as they must pass numerous quality tests to earn that designation. As manufacturers rush to fill the market with LED bulbs in the wake of changing laws, watch out for cheap fixes-if it seems too good to be true, it likely is. Newer bulbs have a Lighting Facts label that will give you all the details of a particular bulb:Įspecially in LEDs, the manufacturing quality of the bulb varies, with lesser bulbs not lasting as long as their better-built counterparts. For example, while we’ve previously looked to watts to learn a bulb’s brightness, that information is now presented in lumens. How do I read the light bulb label?Ĭhanges in lighting regulations and technologies mean that there are new lighting terms to learn. Additionally, you can use the color temperature chart to help you in choosing the best lighting for your application. This should provide you with a good understanding of how bright 120 lumens is vs. Use the chart above to determine exactly how many lumens are in a watt and vice versa. See how to measure lumens below: How many lumens do you need? With new, energy-efficient LED technology, we can no longer rely upon wattage to indicate how bright a bulb is. Not that watts are bad, but they measure energy use, not light output. The definition of lumen is: “a unit of luminous flux in the International System of Units, that is equal to the amount of light given out through a solid angle by a source of one candela intensity radiating equally in all directions.” What is a lumen? How is it different from a watt?
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