Projector Brand: VIEWSONIC Type: OBH lamp unit (Original Bulb - as in OEM - in a Housing made by a large manufacturer of housings) Lamp(s) in box: 1 Bulb Type: Wattage: 240 Watts Lamp Hours: 4000-6000 Hours Warranty: 180 days Projector Models: PX710-4KS, PX710-4KSPRO, PX701-4KPRO, PX701-4KE, PX701-4K, K701-4K