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 ...

Watts measure energy consumption, not brightness. In traditional incandescent bulbs, higher watts meant brighter lights because those bulbs produced more light by consuming more power. But with modern ...

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 ...

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 ...

Katherine Martinko is an expert in sustainable living. She holds a degree in English Literature and History from the University of Toronto. The U.S. Department of Energy is cranking up the minimum ...

Have you ever read the description of a light bulb and started to feel as though you're reading an unknown language? Honestly, sometimes I feel as though I'd have better luck understanding ...

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, ...

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 ...

Previously white LEDs had a max of about 60 lumens per watt but the new White LEDs have 135 lumens per watt and match the best lighting alternatives The new LED can replace traditional fluorescent ...

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 ...