Projector Double Spiff Program. Valid: April 1 through June 30, 2015 Program Details: Earn up to $300 with double spiffs on select 1 Chip DLP projectorsQualifying Projectors: PT-DZ21KU PT-DS20KU PT-DW17KU PT-DZ16KU PT-DZ13KU PT-DZ10KU PT-DS12KU PT-DW11KU PT-EX16KU PT-EX12KU PT-DZ570 INSTALLATION