Housing made of sheet steel with cover ring made of die-cast aluminum painted in RAL 9016 traffic white. With fastening springs for tool-free installation, suitable for ceiling thicknesses of 10mm-25mm. 'Direct, deep/wide beam light distribution using a single lens/TriZone 60° with LEDiL's YASMEEN lens and diffuser ring for Nimbus light effect, for computer workstations, all-round glare protection in accordance with the current standard DIN-EN 12464-1,'