Dimmable Cavity Suspension LED pendant luminaire The round-shaped luminaire body of the Cavity Suspension LED pendant luminaire is made of aluminium and serves as a reflector for the luminaire. It is mainly responsible for directing the light, which is achieved by the trumpet-like shape of the downward light emission. The brightness of the LEDs can be regulated by means of an external phase cut-off dimmer. Cavity Suspension is suitable for rooms with a ceiling height of up to 3 m. The two industrial designers Jean-Marc da Costa and Manfred Wolf designed Cavity. They are also the founders of serien.lighting, a lighting company that was founded in 1985 and is now internationally renowned. The luminaires by serien.lighting are characterised by a mostly simple but very refined design, in which the latest technologies form a perfect symbiosis with minimalist design.