Brumberg BIRO CIRCLE 13605164. LED pendant surface luminaire, direct, on/off switchable, Round.Luminaire diameter 450.0 mm, Hight 100.0 mm, for pendulum mounting. Pendulum length max. 5000.0 mm Weight 3.0 kg, with rotattionssymmetrical, deep, wide distributed light intensity. optimal light distribution due to a plastic, opal cover.Luminous flux 2.550 lm, Power 1 x 25 W, Light colour neutral white, Correlated color temprature (CCT) 4.000 K, Colour rendering index CRI > 80, Rated life time L70/B50 at 25 °C: 50.000 h, Rated life time L80/B50 at 25 °C: 50.000 h, Housing material: Aluminium / Steel / Plastic, Colour: Silver structure, Permissible ambient temperature (ta): -20 °C - +25 °C, Protection class (EN 61140): I, Degree of protection (DIN EN 60529): IP40, .With electronic driver, on/off switchable. BRUMBERG article number:13605164, GTIN:4251433942511