Round 31 B, wall and ceiling luminaire. * lighting technology 1: - primary optical cover: enclosure, of PMMA, - primary emission direction: below, - primary beam angle: 120°, - light emission: direct distribution, - primary light characteristic: symmetric. * mounting: - installation arrangement: single arrangement, - installation type: surface-mounted, - installation location: to the ceiling, to the wall. * electrical 1: LED, - rated luminous flux: 1.800lm, - luminous efficacy: 120lm/W, - light colour: 830, - colour temperature: 3000K, - colour rendering: CRI > 80, - with terminal, 3-pole, max. 2.5mm², - mains connection: 230V, AC, 50/60Hz, - rated input power: 15W. * component: - luminaire housing, round, of steel, white. - diameter: 290mm, height: 85mm, - weight: 0,8 kg. * testings/approvals/admissions: - protection rating (complete): IP40, - insulation class (complete): insulation class I (protective earthing), - certification: CE, - impact resistance: IK02, - permissible operating ambient temperature: -20..+25°C. * service life: - rated service life: 50.000h (L80/B10) at AT= 25°C. - packaging unit: 1 piece. Round 31 B. * type: 5PJA010001A.