I may have received faulty units but in the two packs I received the first worked fine for about a week and then randomly during that time use switched off. When I switched to the second, I found that it flickered from time to time and made a loud buzzing noise. Eventually they both stopped working altogether. However, when they worked, they worked very well; The light was much brighter and gave better color than the 10w bulbs I used. Back then these bulbs were sold as 20W instead of the 15W shown now so they may vary slightly. Since they came from China I couldn't return them but the customer service was great and they refunded the money. My money no problem.
Lamp LED Xiaomi Mi Smart LED Bulb Essential (MJDPL01YL), E27, 9 W, 6500 K
113 Review
Lamp LED Yeelight Smart LED Bulb W3 (YLDP005), E27, A60, 8 W, 6500 K
47 Review
Smart bulb Yandex with Alice, base E27, 8 W, RGB color
76 Review
Ceiling lamp Yeelight YLXD013-B, 50 W, number of lamps: 1 pcs., color: white
62 Review