Device carrier made of galvanized, profiled steel sheet, with a surface coated in polyester resin. Tool-free attachment with design-integrated snap fasteners ensures protection against theft and disassembly. It can be positioned variably on the support rail. Light distribution is extremely deep-throwing directly through individual lens optics made of PMMA plastic, with shelf illumination. The single lens optics provide high ease of installation and are maintenance-friendly due to the easily cleanable surface. The rhythm of the three-row single lens arrangement is perfectly coordinated both within and across device carriers, ensuring a homogeneous appearance in the object, UGR (4H/8H) 14.1. Heat-resistant cables including a 1 m connection cable and a quick-mount plug part with tool-free phase selection and search finger.