
The instructions explain using a 2 3/4" hole saw which is too small, the junction box does not fit and the light is very narrow, a 3" hole saw must be used. The junction box is almost useless, clamp connectors are required for the power connection, which must be included! Note that the screws used to attach the PSU are very small and require a #1 tab, very difficult to work with and just need a better design.

Lamp LED Xiaomi Mi Smart LED Bulb Warm White (XMBGDP01YLK), E27, 8 W, 2700 K
26 Review

Lamp LED Yeelight Smart LED Bulb 1S, YLDP13YL, E27, 8.5 W, 6500 K
43 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