Hello Lorenzo, According to the manufacturer documentation this model light source(s) are not claimed to be M0, M1, or M2 compliant but "combined LED sources". I asked the question directly to the manufacturer about this and got an answer mentioning the supported illuminants used for tristimulus reporting. So you may want to clarify this. Danny -----Message d'origine----- De : colorsync-users [mailto:colorsync-users-bounces+dpascale=babelcolor.com@lists.apple.com] De la part de Lorenzo Ridolfi Envoyé : 16 novembre 2018 12:39 À : ColorSync List Objet : Chinese spectro Hi, Does anyone have any REAL experience with a Chinese spectrophotometer model number NS800 from 3nh? I contacted the manufacture on China and they said the performance is close to a X-Rite instrument… but, of course, I’d like to have a REAL customer report. https://www.amazon.com/Smart-Meter-Professional-Colorimeter-spectrophotomete... <https://www.amazon.com/Smart-Meter-Professional-Colorimeter-spectrophotometer/dp/B01D5M2PTS/ref=sr_1_11?ie=UTF8&qid=1542389513&sr=8-11&keywords=ns800> For a 8mm aperture spectro with multiple light sources the price is good and it has a small footprint, which facilitates the integration with a XY table. Best Regards, Lorenzo _______________________________________________