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| Brand | BenQ |
| Country / Company of Origin | TAIWAN |
| Country of Manufacture | China |
| Model Name | LW820ST |
| Projection System | DLP Single 0.65" WXGA |
| Native Resolution | WXGA (1280x800) |
| Light Source Type | Laser diode |
| Brightness | 3600 ANSI lumens |
| Contrast Ratio | 3000000:1 |
| Display Color | 1.07 Billion Colors |
| Lens | F = 2.42~2.97, f =20.7~31.05 mm |
| Aspect Ratio | Native 16:10 (5 aspect ratio selectable) |
| Throw Ratio | 0.52 |
| Image Size (Diagonal) | 60"~120" |
| Zoom Ratio | Fixed |
| Lamp Type | N/A |
| Lamp Life | Min 20000Hrs |
| Projection Offset | 106.1 +/- 2.5% |
| Resolution Support | Up to UXGA (1600 x 1200) |
| Horizontal Frequency | 15~102KHz |
| Vertical Scan Rate | 23~120Hz |
| Keystone Adjustment | 1D keystone, Vertical ± 30 degrees |
| Wireless Network | IEEE 802.11a/b/g/n/ac PC-less Presentation by HDMI Dongle (Optional Accessories) |
| Interface | HDMI-1 X1 |
| HDMI-2/MHL X1 | |
| PC (D-sub 15pin) X2 | |
| Monitor out (D-sub 15pin,Female) X1 | |
| Composite Video in (RCA) X1 | |
| S-Video in X1 | |
| Audio in(mini jack) X1 | |
| Audio L/R in (RCA) X1 | |
| Microphone in (Mini jack) X1 | |
| Audio out (mini jack) X1 | |
| LAN Port(RJ45 for Network ) X1 | |
| RS232 In (D-sub 9pin, male) X1 | |
| USB TypeA (5V,1.5A) X1 | |
| USB Type mini B (For service) X1 | |
| IR Receiver(Front/Top) X2 | |
| Dimensions(W x H x D) | 410 x 158 x 272 mm |
| HDTV Compatibility | 480i, 480p, 576i, 576p, 720p, 1080i, 1080p |
| Video Compatibility | NTSC, PAL, SECAM |
| 3D Support and Compatibility | PC: 120Hz Frame Sequential 3D for resolutions up to WXGA, PC: 60Hz Top-bottom 3D for resolutions up to SXGA+, Video: 60Hz Frame Sequential 3D for resolutions up to 480i |
| Weight | 5.6kg |
| Audible Noise | 33/29 dBA (Normal/Economic mode) |
| Power Supply | AC100 to 240 V, 50 to 60 Hz |
| Picture Modes | Dynamic/Presentation/sRGB/Cinema/(3D)/User 1/User 2 |
| Accessories (Standard) | Remote Control with Battery |
| Power Cord (by region) | |
| User Manual CD | |
| Quick Start Guide | |
| Warranty Card (by region) | |
| VGA (D-sub 15pin) Cable | |
| Warranty | Parts 3 year & Lamp 3 year or 3000 hours Warranty |
| Learn more about Projector | https://www.youtube.com/watch?v=CrStm_mQ1L4 |
| Source Link | https://business-display.benq.com/en-ap/findproduct/projector/interactive-classroom-projectors/lw820st.html |