For Corona render, it is recommended to install a version at least 1.5, since the glossiness of the materials is configured with PBR in mind.
In the archive you will find the max 2018, FBX and OBJ file in 4 versions: natural shade color (1 and 2 lamps) and white color (1 and 2 lamps).
https://polyluma.com/en-de/products/sphera-mono-ico?Size=200mm&Material=White&Cable+Color=Black