Optoma EW536. Projector brightness: 2800 ANSI lumens, Aspect ratio: 4:3, 16:9, 16:10, Projection technology: DLP. Service life of lamp: 4000 h. Focal length range (f-f): 21.86 - 24 mm, Throw ratio: 1.55 - 1.7:1. Vertical scan range: 24 - 85 Hz, Horizontal scan range: 15.3 - 91.1 kHz. Video formats supported: PAL SECAM 576i/p, NTSC 480i/p, HD 720p/1080i/1080p