I connected each light bulb separately, but this is not critical, but you can control each light bulb separately. After adding them to the group in the smart home application from Alice, you can control 4 bulbs at once with one slider at the same time, make the brightness quieter or stronger. Also configured the script to turn on and off. In the morning, I do a little quieter, so that my eyes are comfortable. In the daytime and evening, I make the light brighter. The bulbs are not colored, I added to the application from Yeeight as a GU10 smart bulb w1 (dimmable) light bulb. In the smart home from Alice, all the light bulbs were added perfectly.