Wall or ceiling lamp with reflected and diffused light. The shell-shaped diffuser, made of injection-moulded translucent opaline polycarbonate, encloses and conceals the lighting technology components. The 5 pre-assembled plates of two different sizes are made of matt batch-dyed ABS and feature a click-in system with coupling onto the diffuser which cannot be moved. Electronic ballast, and also available in the dimmable version. Pre- marked outlets in the diffuser allow for the passage of an electrical cable for multiple configurations powered by a single power point.