BenQ MS521 SVGA 3000L HDMI Smart Eco 3D Projector with 10,000 Hour Lamp Life Projector Lamp Modes: Normal/Eco/Smart Eco/Smart Eco Lamp Care for up to 4500/6000/6500/10000 hours respectively Blu-Ray 3D Ready I/O: HDMIx1/Computer D-sub 15 pinx 2/Monitor out D-sub 15pin x 1/Composite Video in (RCA)x 1/S-Video in Mini DIN 4pinx 1/USB (Type mini B)x1/RS232 DB-9pinx 1/IR Receiver 2 Picture Modes: Dynamic/Presentation/sRGB/Cinema/User 1/User 2 Aspect Ratio: Native 4:3 (5 aspect ratio selectable) / Throw Ratio: 1.97-2.17 (50 inchat 2m)