Control Cabinet LED Enclosures Phoenix Contact Control Cabinet LED Enclosures are designed with integrated optics to ensure optimum illumination of control cabinets. The 400 Class Enclosures feature prismatic integration in the light cover for optimum illumination, while the 600 Class Enclosures achieve optimum illumination with integrated optics. Tool-free assembly is possible with the clip or integrated retaining hook systems. These systems allow several lights to be successively switched using either an integrated button or external position switch for the 400 Class or integrated motion sensor for the 600 Class.