Yeelight becoming part of the Xiaomi ecosystem in 2014. Yeelight Smart Lighting are bulbs and LED strips of good quality and with a very nice price.
The products are usable with mi-home platform and also in the Yeelight app. When you set the products in developer mode you can include them in Home Assistant. Next to that, the products are compatible with amazon Alexa and Google Home. So you use the app/platform you like the most.
My opinion: Philips quality only with a good price!