Samsung SP-D400, 4000 ANSI lumens, DLP, XGA (1024x768), 2500:1, 30 - 70 kHz, 56 - 85 Hz Samsung SP-D400. Projector brightness: 4000 ANSI lumens, Projection technology: DLP, Projector native resolution: XGA (1024x768). Light source type: Lamp, Service life of light source: 2000 h, Service life of light source (economic mode): 2500 h. Throw ratio: 1.8 - 2.1:1. Serial interface type: RS-232. Noise level: 30 dB