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 ...

For most of us, all of our lives we have associated watts with the brightness of a light source. After all, when we change a light bulb at home, we choose a 100 watt bulb if we want more light than we ...

Q I keep reading articles and hear people talk about lumens from a light bulb and watts from a light bulb. I’m told that if I buy a compact fluorescent lamp, that swirly light bulb, that I have to get ...

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 ...

LED maker Cree, Inc. says it measured an industry-best efficacy record of 231 lumens/watt for a white power LED. This result is a significant advance beyond Cree's previous industry record. The catch ...

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 ...

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 ...

Two years after breaking the 200 lumens-per-watt (LPW) R&D efficacy barrier, Cree, Inc. delivers another industry first with the introduction of the Cree XLamp MK-R LEDs. The new MK-R LEDs leverage ...