PHOS Lighting is an Australian invested enterprise in China that specialies in the design and manufacturing of LED commercial lights. These are widely used in commercial Building, Supermarkets, Shopping Malls, Schools, Hospitals homes and man...
An eliptical region on a chromaticity diagram that contains all the colours that are indistinguishable to the human eye from the colour at the center of the elipse. Each MacAdams elipse can be dvided into 7 steps called "Standard Deviation of Colour Matching (SDCM). For the average human eye, colour changes within the first 3 MacAdams steps are undetectable.