SOLVED: For a room of Sm X 4m size and 4m height, a Gx4Owatts FTL luminaire is mounted at the center of the room: Photometric data is given below Work plane height
iGuzzini - Lighting innovation for people
AUSTRIA 1953/1961 - 8 x FF CV/CD - KLM - VIA AMSTERDAM --F/VF | eBay