Tracklight made of die-cast aluminium; System power 21W, measurement Ø72mm; tracklights length 150mm; rotation 355° and pivot max. 90°; after a lifetime of 50000h min. 80% of the luminous flux with energy efficient CITIZEN LED Chips; 5 years warranty; beam characteristic with 15° beam angle; lighting perfectly suitable for reading, writing as well as computer and control work according to DIN EN 12464-1 (UGR<19); degree of housing protection according to DIN EN 60529 (IP20)