BENQ MP512ST Projector Replacement Lamp with Housing Aurabeam Projector solutions. From the economic to the professional versions our lamps ensure great quality. Economic version: Affordable option for the low use consumer, designed to ensure the best quality on a low budget. Easy installation: Housing included, minimize installation time to make sure your device is back in action! Contact: Do you have an issue or question regarding the lamp or the compatibility of your device? Email us, our Customer Service is here to help you. User Protection: The Economic series lamps include a 90 day replacement warranty and a 30 day refund warranty,