These examples are programmatically compiled from various online sources to illustrate current usage of the word 'lumen.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Kate McGregor, House Beautiful, 26 July 2023 See More Lumen, unit of luminous flux, or amount of light, defined as the amount streaming outward through one steradian (a unit of solid angle, part of the volume. 2023 Like any bulb, LEDs come in a variety of light tones, called Kelvins, and brightness levels, or lumens. Lumen’s Mike Follett discusses eye-tracking research that defines Attention as the first common currency across different media, highlighting how audiences really identify with brand messaging in today’s multi-media world. 2023 That’s because traditional incandescent bulbs provide just 15 lumens per watt, according to light bulb manufacturer Philips. Campaign measurement requires more than impressions and viewability. Sheena Vasani, The Verge, 25 July 2023 Traditional incandescent lightbulbs provide just 15 lumens per watt, according to lightbulb manufacturer Phillips. Lumen is a metabolism tracker (sometimes referred to as a metabolic breath analyzer) that can tell you whether you’re using carbohydrates or fat for fuel. 2023 The kit’s color-changing smart bulbs offer 800 lumens of brightness and radiate over 16 million colors of light. Lumen Review: Summary and Final Thoughts. 2023 The rule passed by President Joe Biden’s Department of Energy in April 2022 states that light bulbs must emit a minimum of 45 lumens per watt. 2023 Going forward, the vast majority of light bulbs must produce at least 45 lumens (a measure of brightness) per watt of electricity. the unit of luminous flux, equal to the luminous flux emitted in a unit solid angle by a point source of one candle intensity. 2023 Now, with LEDs and CFLs producing more light using less electricity, consumers are advised to check lumens when choosing brightness. Maria Conti, Better Homes & Gardens, 1 Sep. Recent Examples on the Web When outfitting a space with mood lighting or installing pendant clusters, opt for light bulbs with lower lumens to avoid harsh overhead lighting.
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