You never know when your projector's lamp might fail, so it is smart to carry a back-up on business trips or keep a spare one at the presentation facility. This replacement lamp from Dell™ is a life-saver, in case your projector's bulb burns out. This durable, 250-watt bulb has lamp-life of approximately 1500 hours (up to 3000 hrs in Eco-mode) and gives you of excellent, crisp and clear brightness. This product has been tested and validated for your Dell projector. It is supported by Dell Technical Support when used with a Dell projector.