AMICAL - a ceiling-mounted luminaire for offices. Two side, thermoformed diffusers with edge illumination. Three-layer construction consisting of a reflective layer, a light guiding layer and a non-yellowing opal PMMA diffuser. The central additional module can have different optics: microprism (MP), opal diffuser (OP), black reflector (DK), white reflector (WT) or louvre (SMP). Central module mounted on CLICK in an extruded aluminum profile. The electrical connector available from the top of the fixture shortens installation time. Tool-free possibility of powering and mounting the luminaire in modular ceilings.