Optoma ZH521. Projector brightness: 5500 ANSI lumens, Projection technology: DLP, Projector native resolution: 1080p (1920x1080). Light source type: Laser, Service life of light source: 30000 h. Focus: Manual, Focal length range: 16.90 ~ 21.61 mm, Zoom type: Manual. Analog signal format system: NTSC M, NTSC J, PAL, PAL B, PAL D, PAL G, PAL H, PAL I, PAL M, PAL N, SECAM, SECAM B, SECAM D,..., Supported 3D formats: Frame Sequential, Supported graphics resolutions: 1600 x 1200 (UXGA), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1920 x 1080 (HD 1080), 1024 x 768.... Serial interface type: RS-232, RJ-45