DT00701 compatible lamp module $90/pc.
Fit for the following projectors:

HITACHI CP-RS55  
HITACHI CP-RS56  
HITACHI CP-RS56 +  
HITACHI CP-RS57  
HITACHI CP-RX60  
HITACHI CP-RX60Z  
HITACHI CP-RX61  
HITACHI CP-RX61 +  
HITACHI PJ-LC7