Suitable for suspended mounting: Yes; Suitable for ceiling mounting: Yes; Suitable for built-in mounting: Yes; Suitable for surface mounting: Yes; Suitable for workplace according to EN 12464-1: Yes; Lamp type: LED not exchangeable; With light source: Yes; Housing material: Aluminium; Surface protection housing: Lacquered; Housing colour: White; Material cover: Plastic, structured; Type of grid: None; Voltage type: AC/DC; Nominal voltage: 220~240 V; Nominal current: 900 mA; Type of control gear: LED operating device current-controlled; With control gear: Yes; Exchangeable control gear: Yes; Dimming DALI-2: Yes; Dimming DALI: Yes; Light distributor: Diffuser lens/optic/panel; Light sharing: Symmetric; Beam angle: Extreme wide beam >80°; Colour consistency (McAdam ellipse): SDCM3; Light outlet: Direct; Energy efficiency class of the light source according to EU regulation 2019/2015: F; Rated life time L70/B50 at 25 °C: 100000 h; Lifetime (L70): 100000 h; Max. number of luminaires per miniature circuit breaker B16 (MCB): 16; Max. number of luminaires per miniature circuit breaker C16 (MCB): 25; Lifetime (L80): 70000 h; Equivalent to: TL 4x18W; Degree of protection (IP): IP54; Driver failure rate (at 5,000 hrs): 1 %; Impact strength: IK04; Application temperature: 25 °C; Protection class: II; Storage environment: -25~50 °C; Frequency: 50/60 Hz; On-/Off-cycles: 100000; Rated ambient temperature according to IEC 62722-2-1: -20~40 °C; Colour consistency (SDCM): 3; Anti-glare limiting UGR lengthwise: 19; Anti-glare limiting UGR crosswise: 19; Filament test according to IEC 60695-2-11: 650 °C - 30 s; Max. system power: 34 W; Luminaire efficacy: 115 lm/W; Rated luminous flux according to IEC 62722-2-1: 3910 lm; Colour of light: White; Colour temperature: 4000 K; Colour rendering index CRI: 90-100; Power factor: 0.9; Width: 620 mm; Height/depth: 9 mm; Length: 620 mm; Built-in length: 620 mm; Built-in width: 620 mm; Type of wiring: Ending; Weight: 2.62 kg; Beam angle: 85 °; Dimmability: DALI; Connection type: Free conductor end; Glow wire test: 650 °C; Photobiological safety according to EN 62471: RG0; UGR: 19; Operating temperature: -20~40 °C; Unified Glare Ratio (UGR): 19; Optical material: PMMA; Colour of light adjustable: No; Cover material: Polystyrene (PS); Luminous flux adjustable: Positions; Beam angle adjustable: No; Finishing: White RAL9003; IFTTT support available: Yes; Colour rendering index (CRI): > 90; Meets min. EIA service life criterion L90 (at 50,000 hours at tq = 25°C): Yes; Beam angle: 85°; DC input voltage: See catalogue appendix Connection Specifications; Risk group (EN 62471): RG0; TM-30-Rf: 91; TM-30-Rg: 98; R9: 65; IP recessed part: IP20; IP front side: IP54; Max. inrush current: 25 A; Inrush time: 500 µs; Max. number of luminaires per miniature circuit breaker C10 (MCB): 15; UGR: ≤ 19; 230V Cable length: 1 m; Lifetime (L90): 50000 h; Max. number of luminaires per miniature circuit breaker C13 (MCB): 20; Nominal voltage DC: 180~280 V; System power: 34 W