Make certain you have read the Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE manual thoroughly before attempting the Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE bulb replacement on your Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE. Without touching the surface of the Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE lens, remove the lens tube and set it aside. Write down the number from inside the tube's inner lip for the purpose of make, model or serial number for any future need to buy Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE replacement parts. Your bulb should be sitting just beyond the opening of the Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE body. Reach in with two fingers and disconnect the Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE bulb. Reverse these steps to re-assemble your Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE. This concludes the Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE review - be sure to read the entire Hitachi CP-X251 2000 LUMENS XGA PROJ. w/CASE manual.