Device carriers made of galvanized, profiled sheet steel with a zinc coating combined with polyester resin paint ensure good corrosion protection. Tool-free fastening with design-integrated pressure locks ensure protection against theft and dismantling. Integrated plastic end faces with sealing lips and a circumferentially closed seal to the mounting rail for protection class up to IP64. Direct wide-beam light distribution using Individual.Lens.Optic made of PMMA plastic. The single lens optics contain a transparent seal, ensure high ease of installation and are easy to maintain thanks to the easy-to-clean surface. The rhythm of the 3-row single lens arrangement is perfectly coordinated within and across the device carrier and ensures a homogeneous appearance in the object. With emergency light battery 3h and integrated status display, three-hour emergency light operation. Heat-resistant cables including fixed-position 4-pin quick-assembly plug part with tool-free phase preselection and search finger, via an additional pole on the plug part, a conductor of the through-wiring can be used as an unswitched charging phase.