Model MX550 DLP Technology Native solution XGA (1024 x 768) Luminousity 3600 Lumens Contrast :1 Look relation 4:3 Audio 1 2W flash Light source Lamp Life used of the lamp hrs, Normal/Eco Connections 2 x HDMI 1.4a 1 x Mini USB-B 1 x Port RCA 2 x VGA (1 input / 1 output) 1 x