Black Foster is the product that transfers the claimed effect "The Invisible Black" to a recessed-isolated lineal luminary also available in trimless version. If we take a closer view to the recessed model, its bezel is so thin than when lighted up, it is unperceived offering an aesthetic of "visual trimless". Black Foster stands out for its refinement, its visual comfort and for almost completely hide the source of light from the human eye range.