The Mayfair pendant lights are designed by Diego Fortunato. An evolutionary step for the 18th Century lighting genre incorporating innovative technology based on the use of light
Vibia manufacture two models of the Mayfair pendant lights, one with a single diffuser and another with three diffusers for illuminating a greater area.

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Who works with V-Ray version lower than SP1, pay attantion to materials section BRDF (Microfaset GTR (GGX)), if your version is older than SP1 - this option will be empty and you have to choose:
Blinn,Ward or Phong, depence on material.