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 ...

Alina Bradford has been writing how-tos, tech articles and more for almost two decades. She currently writes for CNET's Smart Home Section, MTVNews' tech section and for Live Science's reference ...

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 ...

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 ...

Light bulbs will no longer be labelled in watts under new EU rules. It has decided to replace the energy measurement - named after the 18th century British inventor James Watt - with 'lumens', which ...

Planning your lighting for a photo or video shoot can be complicated, and the terminology used to measure light in lighting equipment can make things even more confusing. When shopping online, most ...

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 ...