Ceiling mounted Spotlight round made of die-cast aluminium for 3-Phase Track System; System Power 21W; measurements tracklight Ø72mm x 140mm/170mm(DALI Ver.); rotation 355° and pivot max. 90°; after a lifetime of 50000h L80B10 min. 80% of the luminous flux with energy efficient CITIZEN LED Chips; 5 years warranty; beam characteristic with 50° beam angle; lighting perfectly suitable for reading, writing as well as computer and control work UGR<19; degree of housing protection IP20