Make certain you have read the HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector manual thoroughly before attempting the HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector bulb replacement on your HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector. Without touching the surface of the HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector 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 HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector replacement parts. Your bulb should be sitting just beyond the opening of the HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector body. Reach in with two fingers and disconnect the HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector bulb. Reverse these steps to re-assemble your HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector. This concludes the HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector review - be sure to read the entire HP (Hewlett-Packard) HP SB21 1000 Lumens SVGA Projector manual.