This is an osram hqi t 2000 wni 642 in colour cool white the hqi t have an output of up to 2000w and are extremely efficient areas of application for the lamp include factories and workshops sports halls and multi purpose halls industrial installation airports docks and ports facilites marshalling yards and in approved enclosed luminaires the lamp has an e40 cap and a long life of up to 9000 hours available in colours neutral white and daylight diameter 1000 mm leng