Ceiling with LED lighting
Size 3000x5000
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Renders in the preview are made in Corona Render 12
Conversion of materials for V-Ray tested on render

Some objects in the scene have a turbosmooth modifier assigned to them:
in viewport - 0 iterations, when rendering - 1 iteration, stacks are not collapsed
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Format: Max2017+Fbx
Render: Corona v12 (LegacyMtl),Vray 6

For Corona render, it is recommended to install version no lower than 1.5, since the glossiness of materials is configured taking into account PBR

In V-Ray lower than 3.1, in the BRDF section there is Microfaset GTR (GGX), be careful. If your version is older than 3.1, the BRDF field will be empty. Select Blinn, Phong or Ward - what is preferable for you.