You never know when your projectors bulb might fail, so its smart to carry a backup on business trips or keep a spare one in the presentation facility. This replacement bulb from DellTM is a lifesaver, if your projectors bulb burns out. This durable bulb will give you up to 2500 in EcoMode1 hours of excellent, crisp and clear brightness. This product has been tested and validated for your DellTM Projector. It is supported by DellTM Technical Support when used with a Dell projector.