It is not very easy to connect to the phone, I think that older people would not have coped. On an iPhone, it is difficult to connect directly to the Home application, you need to scan the numbers on the light bulb that is already screwed into the ceiling (you could use the numbers on the box, but it was already lost). I had to first connect in the Yeelight application for iPhone from there to share it in the Home application. I used the Yeelight application on Android, it’s quite convenient to not scan anything, it searches and connects itself. I think it would be possible to add some more modes. In the "wave" mode, 4 colors are not enough, plus the transition from 4 colors to 1 is sharper than between 1-2-3-4. In any case, after a month of entertainment, I settled on 3 modes Bright, Medium and Off