Technical Information Tungsten Halogen single ended No. DO 5375 Edition: 10/04 - subject to change 64743(120V) Supersedes: / Status: valid Product description The OSRAM 64743 is a 1000W Tungsten halogen lamp with a G9.5 socket and is mainly used for Studio, film and Theatre. The socket is made of aluminum and fits well in TP220 and TP22 fittings. Technical Data Lamp / order reference 64743 ANSI FEL LIF - Rated lamp wattage W 1000 Rated lamp voltage V 120 Average life-time h 300 Colour temperature K 3200 Luminous flux lm 27500 Luminous efficacy lm/W 27.5 Base G9.5 Diameter d mm 20 Lamp length L mm 101 max. LCL a mm 60.3 Filament dimensions (w x h) mm 11.4 x 24.4 Type of filament CC-8 Lamp operation Max. pinch seal temperature Burning position Display/Optic Berlin °C 350 any d L a