You never know when your projector's bulb might fail, so it's smart to carry a back-up on business trips or keep a spare one in the presentation facility. This replacement bulb from Dell™ is a life-saver, if your projector's bulb burns out. This product has been tested and validated for your Dell™ Projector. It is supported by Dell™ Technical Support when used with a Dell projector. This product includes the following parts: Replacement Bulb and Instructions Manual.