DT00781 compatible lamp module $90/pc.
Fit for  the following projectors:

HITACHI CP-RX70  
HITACHI CP-X1  
HITACHI CP-X2  
HITACHI CP-X253  
HITACHI CP-X4  
HITACHI ED-X20  
HITACHI ED-X22  
HITACHI MP-J1EF  
HUSTEM MVP-T20