LED recessed ceiling light with electronic ballast, lamp power: 41.7 W. LED lifespan of 100,000 hours until light output decreases to 80% of the initial value. Light output: 4800 lm, luminous efficacy: 115 lm/W. Color rendering index Ra > 80, color temperature 4000 K. Despite the highest quality controls, noticeable color differences may occur between the fixtures when applied in clusters due to defined binning. To achieve a homogeneous appearance, it is recommended to consult a lighting advisor when planning installation in clusters or light bands. Diffuse side areas for pleasant ambient lighting and high-quality lens optics (Advanced Crystal Optic) for the central area provide glare-free lighting with UGR < 19 and L65 < 3000 cd/m², and a high-contrast appearance. Internal 5-pole connection terminal (can be connected from inside or outside), installation as a single fixture or in clusters, suitable for cut ceiling openings and modular ceilings with concealed or visible support systems. Mounting set and strain relief must be ordered separately, fixture with external electrical connection. Fixture is halogen-free wired, dimensions: 1248 x 310 x 82 mm, weight: 7.4 kg.