Black Foster, designed by Arkoslight Product Manager Rubén Saldaña, is the lighting fixture that transfers the lauded “Invisible Black’ effect to a linear system. Black Foster is composed of a series of combinable modules enabling the alternation of segments with light emission and without light emission. However, whether it is ON or OFF, this luminaire always keeps the aesthetics of a perfect dark line. To the observer, it is impossible to distinguish between Black Foster parts that emit light and those that don’t.