Yeelight can't be added to Apple HomeKit

I have bought multiple Yeelight Smart LED bulbs (color), however opposite to Yeelight’s press release, they cannot be added to Apple Homekit. They use the latest firmware but I do not have a Homekit button in the Xiaomi Home app, neither an ‘Add to Home’ option in the Yeelight app. What could I do to make it work? Please help.

Hi Is the bulb model smart led bulb 1s(color)? This model has access to homeKit. Scan the QR code on the bulb with apple home.