Make certain you have read the Lenovo C400 DLP Projector manual thoroughly before attempting the Lenovo C400 DLP Projector bulb replacement on your Lenovo C400 DLP Projector. Without touching the surface of the Lenovo C400 DLP 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 Lenovo C400 DLP Projector replacement parts. Your bulb should be sitting just beyond the opening of the Lenovo C400 DLP Projector body. Reach in with two fingers and disconnect the Lenovo C400 DLP Projector bulb. Reverse these steps to re-assemble your Lenovo C400 DLP Projector. This concludes the Lenovo C400 DLP Projector review - be sure to read the entire Lenovo C400 DLP Projector manual.