Series: KALEEA BASIC Lay-in luminaire for ceiling systems with visible mounting rails. Housing made of sheet steel, powder-coated. Luminaire frame: aluminium, powder-coated. Diffuser plastic (PS) microprismatic. LED backlight technology for homogeneous illumination of the entire light-emitting surface. Suitable for Lay-in luminaires. External driver. For office areas and environments with computer screens in accordance with EN 12464-1. Colour: white Length: 595 mm Width: 595 mm Cut-out length: 575 mm Cut-out width: 575 mm Recess height: 160 mm Luminaire: recess height: 30 mm Lamp: LED Socket: without socket Colour temperature: 4000K Colour rendering index (CRI): 80 System power: 28 W Rated luminous flux: 3800 lm Beam angle Down: 89° / 82° Luminous efficiency: 136 lm/W Control gear: Regulated power supply Protection class: II Type of protection: IP 40