While there are many variations of white LED light available today, they all fall under three basic categorical descriptions: “warm white,” “pure white,” and “cool white.” At opposite ends of the ...

Cree was a latecomer to lighting controls, but it is making up time with a new feature for its SmartCast system that lets you control color temperature. The company announced today that is has ...

The color temperature of a light, measured in kelvins, is its most noticeable characteristic. A candle, at 1900 K, appears orange. Daylight, at 5500 K, is much whiter and bluer. A 5500-K bulb, however ...

We've reviewed a lot of smart light bulbs here at PCMag, and while we've yet to find one that does it all, the Yeelight Smart LED Bulb comes pretty darn close. It's dimmable, offers 16 million colors, ...

Is there a sufficiently reliable way to get an acceptable measure of the actual colour temperature of the the light generated by an LED bulb, using generic hardware and/or software? Maybe there's an ...