Optoma 4K400x 3D DLP Projector - 16:9 - High Dynamic Range (HDR) - Front - 2160p - 4000 Hour Normal Mode - 10000 Hour Economy Mode - 4K UHD - 1,000,000:1 - 4000 lm - HDMI - USB - Class Room, Office, Presentation, Gaming, Home, Corporate, Business, Conference: