A:Answer Hello Curt, this is Kelly with Dyson. The Dyson Lightcycle task lamp will intelligently track local daylight, getting data with regard to sunrise and sunset times. A cloudy day would not bear any effect on the lamps' ability to automatically adjust the brightness and color temperature. You'll always have the right light, for the time of day, anywhere in your home.
Best wishes,
Kelly
Dyson Customer Support
