https://caussa.de/product/echo-floor-lamp-ultramarine-blue/ 
The model is presented in four color variations
UV MAPPING- +
SUBDIVISION-Optional
MATERIALS:
CORONA 11- CoronaLegacy, CoronaBitmap
VRAY 6- VRayMtl, VRayBitmap

Those who work in a V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - whichever is preferable for you.

Hope you enjoy - thanks for purchasing!