ViewSonic Corporation

3840 x 2160 - Front - 2160p - 6000 Hour Normal Mode - 20000 Hour Economy Mode - 4K UHD - 12,000:1 - 3200 lm - HDMI - USB

Viewsonic LS550WH. Projector brightness: 2000 ANSI lumens, Projection technology: LED, Projector native resolution: WXGA (1280x800). Light source type: LED, Service life of light source: 30000 h. Zoom type: Fixed, Offset: 110%. Supported graphics resolutions: 640 x 480 (VGA), 1920 x 1080 (HD 1080), Supported video modes: 480i, 480p, 576i, 720p, 1080i, 1080p. Serial interface type: RJ-45, RS-232, HDMI connector type: Full-size

Yes - 3840 x 2160 - Front, Ceiling - 20000 Hour Economy Mode - 4K UHD - 12,000:1 - 4000 lm - HDMI - USB - Network (RJ-45) - Home, Entertainment, Gaming - 3 Year Warranty

Viewsonic PG706WU. Projector brightness: 4000 ANSI lumens, Projection technology: DLP, Projector native resolution: WUXGA (1920x1200). Service life of light source: 4000 h, Service life of light source (economic mode): 20000 h. Throw ratio: 1.5 - 1.65. Supported graphics resolutions: 1920 x 1200 (WUXGA). HDMI connector type: Full-size

Viewsonic PG706HD. Projector brightness: 4000 ANSI lumens, Projection technology: DMD, Projector native resolution: 1080p (1920x1080). Light source type: Lamp, Service life of light source: 4000 h, Service life of light source (economic mode): 20000 h. Focus: Manual, Focal length range: 15.843 - 17.445 mm, Aperture range (F-F): 2 - 2.05. Analog signal format system: NTSC, PAL, SECAM, Supported graphics resolutions: 640 x 480 (VGA), 1920 x 1200 (WUXGA), Supported video modes: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Serial interface type: RS-232, HDMI connector type: Full-size

27" ColorPro Monitor - In-plane Switching (IPS) Technology - 4K UHD 3840 x 2160p - 1.07 Billion Colors - 350 Nit Typical - HDR10 - RJ45 - 75Hz Refresh Rate - 90W USB C - HDMI - DisplayPort - USB Hub