Lumen is a measure of brightness in LEDs. I am gradually switching to LED bulbs at home. I believe that’s the way to go if you want to trim your electricity bill. These bulbs are super efficient in ...

LED maker Cree announced this week that it had achieved a new record in terms of lighting efficiency, harvesting 303 lumens per watt from a white high power LED at room temperature. This represents a ...

Take a look at a couple of comments on the previous post regarding the efficacy of production LEDs. A reader points out that using 683lm/W (from Wikipedia) as the 100% luminous efficacy figure, ...

Although incandescent light bulbs were banned back in August 2023 in the USA, most of us still think of old-school wattage when it comes to describing how bright a light bulb is. We can picture how ...

Progress in the LED lighting industry can best be measured in two separate metrics: pricing and efficiency. Pricing gets most of the attention, but so many factors affect it -- from the cost of ...

One of the ways -- if not the best way -- to track the progress of LEDs over the past few years has been through the metric of lumens-per-watt. As you can gather from the name this is an efficiency ...

Cree, Inc. (Nasdaq: CREE), a market leader in LED lighting, reports another industry-best efficacy record of 231 lumens per watt for a white power LED. This result is a significant advance beyond Cree ...

Watts and lumens — they both describe lightbulbs, but do you know what they actually mean? Did you know that wattage is no longer a reliable way to tell how bright a bulb is? Do you know what makes ...

Originally hailing from Troy, Ohio, Ry Crist is a writer, a text-based adventure connoisseur, a lover of terrible movies and an enthusiastic yet mediocre cook. A CNET editor from 2013 to 2024, Ry's ...

We may receive a commission on purchases made from links. Generally, a 100-watt-equivalent LED light bulb is between 10 and 15 watts. 60-watt-equivalent LED bulbs are between 8 and 10 watts, and ...