Lay-in/recessed luminaire; Extremely flat white powder-coated aluminium frame, installation height 13 mm, galvanised sheet steel cover suitable for ceilings with exposed T-bars. Housing colour traffic white RAL 9016; Direct light distribution using opal acrylic diffuser. The light source and driver are removable in accordance with the EU 2019/2020 ecodesign requirements and can be replaced in the factory. External LED driver. Flexible 40cm long connecting cable wired to the luminaire via a plug system ready for operation. Please order the recommended accessories for installation in cut-out ceilings, installation set PE-ES 312 and feed-through wiring box DV-BOX ET for convenient connection to the control gear separately. Dimensions (LxWxH/DxH): 1247mm x 310mm x 13mm Ceiling system: ceilings with visible T-rails [s-TS] (312.5x1250 mm), cut-out ceilings [AD] Installation depth: 150mm [AD]; 100mm [s-TS]; 100mm [s-TS] min; 150mm [VS] Ceiling cut-out (LxW/D): 1235mm x 298mm Placement: LED, Colour rendering/Light colour CRI ≥ 80 / 3000K LED service life: 50000h L70/B10 Nominal luminous flux: 3859lm Luminaire luminous efficiency: 113lm/W Controller: Electronic driver (1 pcs.) System output: 34W Mains voltage: 230V Mains frequency: 50Hz UGR lat./long.: 21.3 / 21.2 Certification mark: IP40, Protection class II, F, Indoor, CE Regiolux GmbH Type: panella-PEO/312-1250 LED 3900 830 ET vw RAL 9016 Article number: 60133034110 Product deep link: https://www.regiolux.de/en/article/60133034110 General warranty conditions: www.regiolux.de/en/Service/Warranty