This is an osram hqi t 2000w in colour daylight 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 dimensions amp weight diameter 10