Highbay 21, LED high bay luminaire, end cap. * lighting technology 1: - primary light control with lens, of PMMA, - UGR viewing direction along longitudinal luminaire axis ≤ 22 (X = 4H | Y = 8H | S = 0.25H | reflection values 70/50/20), - UGR viewing direction along lateral luminaire axis ≤ 22 (X = 4H | Y = 8H | S = 0.25H | reflection values 70/50/20), - primary beam angle: narrow distribution, - light emission: direct distribution, - primary light characteristic: symmetric. * mounting: - installation arrangement: single/continuous arrangement, - installation type: recessed, - installation location: in the Licross® trunking rail, - only suitable for indoor use. * electrical 1: - for 2x 2x LED, - rated luminous flux: 26.940lm, - luminous efficacy: 157lm/W, - light colour: 840, - colour temperature: 4000K, - colour rendering: CRI > 80, - control gear: ECG DALI, - with system connector, - mains connection: 230..240V, AC, 50/60Hz, - rated input power: 171W. * component: - LED unit, of diecast aluminium, unplated, bead blasted, silver, - quantity: 4 piece(s), - for tool-free mounting of luminaire to Licross® trunking rail. - length: 1.500mm, width: 500mm, height: 65mm, - weight: 6,5 kg. - housing, of diecast aluminium, uncoated, bead blasted, silver, - quantity: 1 piece(s). - fixing on rail side, of aluminium, anodised, metallic grey, - quantity: 1 piece(s). - end cap, of PC, grey. * testings/approvals/admissions: - protection rating (complete): IP64, - insulation class (complete): insulation class I (protective earthing), - certification: CE, UKCA, - protection symbol: D, - impact resistance: IK08 with glass or PC cover, - permissible operating ambient temperature: -35..+40°C, - corresponds to IFS (International Featured Standards) requirements for safety and quality in the food industry, - reducing of maximum allowable ambient temperature of 5°C with ceiling mounting. * service life: - rated service life: 50.000h (L85/B50) at AT= 25°C. - packaging unit: 1 piece. * manufacture: Siteco, Highbay 21. * type: 51HLA1D24MLB.