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