Round LED pendant ring luminaire, direct/indirect, dimmable, luminaire diameter 2500 mm, height 100 mm, for pendant mounting. Pendant length max. 5,000 mm Weight 19.500 kg, with rotationally symmetrical narrow-wide beam light distribution. Opal plastic cover, rated luminous flux 41,616 lm, rated wattage 1 x 320 W, light color warm white to daylight white, most similar color temperature (CCT) 2,700 - 6,500 K, general color rendering index CRI > 80, service life L70/B50 at 25 °C: 276.000 h, service life L80/B20 at 25 °C: 153,000 h, housing material: aluminum / steel / plastic, color: textured black, permissible ambient temperature (ta): -20 °C - +25 °C, protection class (EN 61140): I, degree of protection (DIN EN 60529): IP20. With electronic control gear, Casambi dimmable.