COOKIE series of wall mounted LED luminaires with cut-out segment disc-shaped metal diffuser and wooden core from lampatron
https://www.lampatron.ru/cat/item/design-lamps-cookie/ 

Diameter: 220mm
Projection from the wall: 50 mm
There are 4 different combinations of materials in the scene

For Corona render it is recommended to install a version of at least 1.5 since the glossiness of materials is configured taking into account PBR