Same as 265866. Used in the following models: HD44LPW134YX1, HD50LPW164YX2, HD50LPW52YX2, HD61LPW164YX3, HD44LPW164YX1, HD50LPW164YX3, HD50LPW52YX3, HD61LPW164YX4, HD44LPW164YX2, HD50LPW164YX3, HD50LPW62AYX2PK, HD61LPW164YX4, HD44LPW165YX1, HD50LPW164YX4, HD50LPW62AYX2, HD61LPW165YX1, HD44LPW165YX2, HD50LPW164YX4, HD61LPW164, HD61LPW165YX2, HD44LPW165YX3, HD50LPW165, HD61LPW164YX1, HD61LPW165YX3, HD50LPW134YX1, HD50LPW165YX1, HD61LPW164YX1, HD61LPW165YX4, HD50LPW164, HD50LPW165YX2, HD61LPW164YX2, HD61LPW52YX1, HD50LPW164YX1, HD50LPW165YX3, HD61LPW164YX2, HD61LPW52YX2, HD50LPW164YX1, HD50LPW165YX4, HD61LPW164YX3, HD61LPW52YX3, HD50LPW164YX2, HD50LPW52YX1, HD50LPW164YX2M1, HD50LPW52YX2M1, HD61LPW164YX3M1, HD44LPW164YX1M1, HD50LPW52YX3M1, HD44LPW164YX2M1, HD50LPW164YX3M1, HD50LPW62AYX2PKW1, HD61LPW164YX4M1, HD44LPW165YX1H1, HD50LPW62AYX2W1, HD61LPW165YX1H1, HD44LPW165YX2H1, HD50LPW164YX4M1, HD61LPW165YX2H1, HD44LPW165YX3H1, HD61LPW165YX3H1, HD50LPW165YX1H1, HD61LPW164YX1M1, HD61LPW165YX4H1, HD50LPW165YX2H1, HD61LPW52YX1M1, HD50LPW165YX3H1, HD61LPW164YX2M1, HD61LPW52YX2M1, HD50LPW164YX1M1, HD50LPW165YX4H1, HD61LPW52YX3M1, HD50LPW52YX1M1. Osram lamps come with a 9 month warranty