Before playing, please note that if a blue light filter or similar is turned on, the colors will look different, so you will need to turn off the filter. Click on a circle to display the next ...

To most people, this light appears blue. There’s still a limited amount of research looking at the effects of other light colors on our sleep cycles. However, there’s some evidence that warm ...

"Behind the white light there is a blue or sort of purplish colour, and they put this phosphor over it and this phosphor then glows white." David Beron, of RAB Design Lighting, in Etobicoke ...