Used in the following models:

PT-56DLX25, PT-56DLX75, PT-61DLX7, PT-61DLX25, PT-61DLX75, PT56DLX25, PT56DLX75, PT61DLX7, PT61DLX25, PT61DLX75

Osram lamps come with a 9 month warranty

Philips lamps come with a 1 year warranty