Hi everyone, 

We're actually working on a project in France. Lighting system suppliers only give us the Photometric curv in cd/klm and no in cd/m². The EN 12464 defines luminance with UGR (Unified Glare Rating). Do you know if this indicator can be used ? Which thresholds do we have to take ?

I know that WELL Building Standard have an equivalency with an UGR < 19 for its luminance credit. 

Thank you in advance, 

Best regards