Diffuser luminaire; sheet steel luminaire body, deep drawn; with foam seal and rotary lever locks; Housing colour traffic white RAL 9016; Direct/indirect light distribution using opal acrylic diffuser, with high corner strength drawn from one piece; The light source and driver are removable in accordance with the EU 2019/2020 ecodesign requirements and can be replaced in the factory. Electrical connection via 5-pole connection terminal with plug-in contacts.. Note on protection rating: IP50 for ceiling and wall mounting, IP40 for mounting rails and suspended installations. Dimensions (LxWxH/DxH): 1215mm x 90mm x 71mm Cable entry KE (X/Y): 40mm/0mm Placement: LED, Colour rendering/Light colour CRI ≥ 80 / 4000K Colour tolerance: 3SDCM Photobiological safety (Luminaire): RG1 LED service life: 50000h L80/B10 (Tq 25°C) Nominal luminous flux: 4238lm Luminaire luminous efficiency: 137lm/W Controller: Electronic driver DALI2 (1 pcs.) System output: 31W Energy efficiency class/light source: C Mains voltage: 230V Mains frequency: 50Hz Impact resistance (IK rating): IK02 Ambient temperatur: ta 25°C Special properties: Ready for IoT UGR lat./long.: 23.2 / 21.2 Certification mark: IP50, Protection class I, F, Indoor, CE Regiolux GmbH Type: KLKF/1200 LED 4100 840 DALI2 vw RAL 9016 Article number: 21100216620 Product deep link: https://www.regiolux.de/en/article/21100216620 General warranty conditions: www.regiolux.de/en/Service/Warranty