NEC WT615 DLP Projector, 3500 ANSI lumens, DLP, XGA (1024x768), 3500:1, 1016 - 2540 mm (40 - 100"), 0.064 - 0.659 m NEC WT615 DLP Projector. Projector brightness: 3500 ANSI lumens, Projection technology: DLP, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 4000 h, Lamp power: 275 W. Focal length range: 14.9 mm. Serial interface type: RS-232, CardBus PCMCIA slot type: Type II. Noise level: 32 dB