ET-LAB10 compatible lamp module $90/pc.
Fit for the following projectors:

PANASONIC PT-LB10E
PANASONIC PT-LB10NT
PANASONIC PT-LB10S  
PANASONIC PT-LB10V 
PANASONIC PT-LB20E  
PANASONIC PT-LB20NT  
PANASONIC PT-LB20SU
PANASONIC PT-LB20V