Weird tech question number 2:

There are smart lights you can put in your home that you can change the color of through an app on your phone. Is there such a thing as a smart light (any form factor - a lightbulb, a fake candle, Christmas garland lights, anything) that you can put in your home that *someone else* can change the color of? Someone you delegate that authority to who is not local to you? Someone who could have authority over individual smart lights in/on hundreds of different people's homes?

The controlling app doesn't have to be a smart phone. Could be a website.