Apollon® 31, office luminaire. * lighting technology 1: - primary optical cover: micro prismatic cover, of PMMA, - UGR viewing direction along longitudinal luminaire axis ≤ 19 (X = 4H | Y = 8H | S = 0.25H | reflection values 70/50/20), - UGR viewing direction along lateral luminaire axis ≤ 19 (X = 4H | Y = 8H | S = 0.25H | reflection values 70/50/20), - primary emission direction: below, - primary beam angle: wide distribution, 90°, - light emission: direct distribution, - primary light characteristic: symmetric, - laterally positioned lamps, concealed from below. * mounting: - installation arrangement: single arrangement, - installation type: surface-mounted, - installation location: to the ceiling. * electrical 1: LED, - rated luminous flux: 4.400lm, - luminous efficacy: 133lm/W, - light colour: 830, - colour temperature: 3000K, - colour rendering: CRI > 80, - control gear: ECG DALI, - with terminal, 5-pole, - mains connection: 220..240V, AC, 50/60Hz, - rated input power: 33W. * component: - housing, of sheet steel, coil coated, metallic grey (RAL 9006). - length: 1.545mm, width: 200mm, height: 44mm, - weight: 5,5 kg. * testings/approvals/admissions: - protection rating (complete): IP20, - insulation class (complete): insulation class II (safety insulation), - certification: CE, - impact resistance: IK02, - permissible operating ambient temperature: -20..+40°C, - standard: EN 60598-2-22. * service life: - rated service life: 50.000h (L80/B50) at AT= 25°C. - packaging unit: 1 piece. * manufacture: Siteco, Apollon® 31. * type: 51MP26WD2341E.