This product is either discontinued or we cannot get that from suppliers.
Panasonic Lamp ET-LAD12K, Rated Wattage 300W, Life Hours 2000, Compatible with Panasonic PT-D12000U, PT-DW100, PT-DW100U, PT-DZ12000U.
PANASONIC Lamp For Pt-dz12000 & ET-LAD12K.