
I think it's a manufacturing defect because just after 4 months of use two bulbs lit up in a light fixture that is used very rarely. flicker and oscillate between light and dark. When they work, they are very bright and energy efficient, but not very durable.

Smart bulb Yandex with Alice, base E27, 8 W, RGB color
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Ceiling lamp Yeelight YLXD013-B, 50 W, number of lamps: 1 pcs., color: white
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Lamp LED Xiaomi Mi Smart LED Bulb Warm White (XMBGDP01YLK), E27, 8 W, 2700 K
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