| Acer H7550ST Projector, 3000 Lumens, 16000:1 Contrast Ratio, 54-300 Image Size, HDMI, USB, VGA, Composite Video, S-Video, Built-in Speaker Cabinet Color: White Aspect Ratio: 16:9 (Native), 4:3 Contrast Ratio: 16,000:1 Display Size: 54 (137cm) ~ 300 (762cm) Horizontal Refresh Rate: 15 ~ 100 kHz Vertical Refresh Rate: 24 ~ 120 Hz Lens: 1:1.1 Manual Zoom and Manual Focus f Number: 2.6~2.78 |
