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 ...

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 ...

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 ...

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 ...

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, ...

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 ...

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 ...

Is it just me, or has shopping for the right light bulb become rather confusing? For something that supposedly runs more energy efficient, the options and jargon on the box leave me scratching my head ...

In the booming industry of Outdoor Lighting, there is a confusing phenomenon: A contractor buys a “10,000 Lumen” solar street light, installs it, and yet the road remains dangerously dim. The battery ...

Understanding the role of nits and lumens in creating a stunning viewing experience can help you choose the right screen for your home If you are about to purchase a TV or video projector and haven't ...