Refurbishment downlight for indoor use, IP20 Front ring of aluminium, powder-coated Passive cooling via reflector Trumpet reflector of aluminium, powder-coated matt white Housing colour: weiß High-quality silicate optic for precise light control and very good glare control Homogeneous symmetrical illumination, UGR<19 beam angle: 60° power: 15, 17, 19 or 21 W (adjustable via dip switch on converter) light colour: 3000K, 3500K or 4000 K (adjustable via slide switch on converter) luminous flux: 1970 lm, 2190 lm, 2450 lm or 2670 lm (depending on selected power) CRI: >80 lifespan L70B50: >= 50,000 h Input voltage: 220-240 V AC, 50/60 Hz Protection class II Installation depth: 90 mm Ceiling cut-out: 275-300 mm Outer diameter: 320 mm Tool-free installation in the ceiling with tension springs that adapt to the ceiling thickness (1 - 30 mm) On/Off control gear with luminaire cable pre-assembled for easy installation Suitable for through-wiring This product contains a light source of energy efficiency class C