com I stated earlier this article on amazon com 1 first time he arrived in diameter of 16.5cm (ridiculous) "15th less" so I returned; I com the same on c.discount 40cm in diameter (confirmed by tchateuse online) surprise: it happens "with amazon sender and ALWAYS 16.5cm diameter; no answer me more for me to pay it? Other than that, I like it myself because it broadcasts on the wall light "slice" clearer darker "is original; it is light: for the ceiling is less risqué..la quality is not extra, slices of plastic that fit together ds the top and bottom circle ds are a super rigid plastic poor quality in my opinion .but as it happens already built, you just adjust one or two that are outputs of the row, then it is placed and does not handle every day: seen from below the effect is very original. .I asked what the one that sent me resumes me and that my return to 40cm and there, it will be with me the desired effect.