BenQ LW820ST
Overview
BenQ LW820ST
3600 Lumens WXGA Education Projector
Create uninterrupted lessons with striking picture quality through long-lasting projection on this 3600-lumen projector with 1200 x 800 resolution.
The LW820ST is a powerful BlueCore laser projector that employs dual color wheel systems to unleash outstanding color performance by increasing color ratios and purity of RGBY color, thus greatly enhancing color saturation and brilliancy at the same lumen output of lamp-based projectors, to deliver superior viewing experiences.
With precision-aligned high-output laser source, secondary yellow-infused color wheel, and an hermetically sealed DLP chip, the LW820ST delivers superior brightness, performance, and durability.
Key features:
- Short throw ratio (0.52:1)
- BlueCore laser technology for superb image quality
- IP5X dustproof mechanism reducing maintenance costs
Features
- Precision-Aligned High-Output Laser Source: Zero-deviation alignment of BlueCore laser diodes boost luminous flux into the light tunnel, improving light efficacy to 3,600 lumens for superior brightness.
- Secondary Yellow-Infused Color Wheel: Dual synchronized BlueCore color wheels utilize an additive yellow segment, stimulating precise RGBY spectra for optimal chromatic performance.
- Hermetically Sealed DLP Chip: Comprising over two million micro-mirrors that reflect pure light through the color wheel, the DLP chip is hermetically sealed to resist heat for over 100,000 hours without degradation.
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Superior Dustproofing Design to Prolong Projector Lifespan: Dust Guard™ technology, including sealed laser modules, protect the laser bank. This lock-and-key design hermetically seals the laser engine from dust to prolong projector lifespan. The design has passed the dust chamber test standard for the international dustproof rating of IP5X.
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Sealed Engine for Laser Light Source: With a fully enclosed laser light source and an innovative sealed engine design powered by BenQ Dust Guard™ technology, BlueCore education projectors guarantee 20,000 hours of maintenance-free operation. The laser light source resists brightness decay, making BenQ laser education projectors highly stable while ensuring high brightness performance through years of usage.
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Anti-Dust Accumulation Sensor Resists Dust Buildup: Incorporating color wheel sensors with an ingenious anti-dust accumulation feature, the LW820ST prolongs optimal performance by rejecting dust which can accumulate on traditional sensors to block the IR signal and cause flickering, abnormal colors, or even shutdown.
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Brilliant Display of Lecture Content: LW820ST’s powerful BlueCore™ laser projection utilizes a dual color wheel system to produce outstanding color performance by increasing color ratios and purity of RGBY colors, greatly enhancing color saturation and brilliancy at the same lumen output of lamp-based projectors to deliver superior viewing experiences.
- Long Lasting High Brightness: LW820ST produces 3,600 ANSI lumens and superior brightness efficiency, at the same level as IFPs for clear, sharp images and text even in large, bright classrooms with lights kept on during lessons. LW820ST’s Custom Brightness function also allows manual light output adjustments in 1% increments to precisely control projection brightness to fit ambient lighting and conserve energy, as well as providing perfect edge blending for multiple projector applications.
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Laser-Enabled Ultra-High Contrast: strikingly clear images with stratospherically high native contrast ratio of 100,000:1 for true deep blacks, vividly rich colors, and fine subtle details. LW820ST also features spontaneous response, requiring no wait to turn on or resume from blanking in true black.
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Instant Power-On: can be turned on and off instantly to significantly reduce setup time compared to other lamp-based projectors.
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20,000 Hour Long-Lasting Performance: With a fully sealed laser light source and an innovative sealed laser engine design, BenQ BlueCore™ laser education projectors deliver 20,000 hours of maintenance-free operation, preventing extra expenses. The laser light source resists color and brightness decay over time, offering significantly more reliable performance after a period of operation.
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Unobstructed Instruction Without Space Constraints: Offering a big screen at short distances with a 0.52 short throw ratio, LW820ST eliminates distracting shadows and glare for students and teachers.
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Bigger Images: BenQ education projectors offer a range of resolutions and projected image sizes to meet diverse classroom needs. Featuring crisp image quality up to 100 inches, BlueCore short throw education projectors deliver increased classroom versatility at reduced costs.
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Create Interaction on Any Surface: PointWrite™ technology works on any flat surface, so no expensive digital whiteboard or additional equipment is necessary. With the PointWrite™ module, images can be projected onto a wall for multiple students to easily share and write on the same screen, creating vast new opportunities for classroom interactivity and enabling possibilities for modern digital classrooms.
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Multi-Touch with Pens and Multi-Screen Drawing: PointWrite™ projectors offer multi-user capability, and two PointWrite™ projectors can be used to double the projection surface. With QWrite1 Whiteboard Mode, teachers can run different applications, or display, view, and annotate across two monitors.
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Windows Gesture Support: PointWrite™ projectors support intuitive Windows gestures such as zooming in and out or scrolling while browsing webpages, pictures, or Google Maps. All multi-touch commands and gestures are supported for Windows 7 or above and future applications.
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Advanced Interactive Module Compatible: For engaging and intuitive lessons, teachers and students can bring their own smart devices and computers to stream documents, images, and even Full HD videos to LW820ST projectors, facilitating the free exchange of ideas and collaborative teamwork. (LW820ST is compatible with QCast and QCast Mirror dongles as optional accessories.)
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Control System Compatibility: LW820ST is widely compatible with leading projector control systems including Crestron, AMX, PJ Link, and Extron2 IP Link for network control via LAN, making it simple to integrate into educational network infrastructures. LW820ST also supports RS-232 for reliable long-distance Installation up to 15 meters when there is no LAN infrastructure.
- Centralized Control with BenQ MDA Software: Multiple Display Administrator (MDA) software enables powerful centralized monitoring, control, and power scheduling across the school’s projector network from a single computer, offering full access and control over every projector directly.
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Centralized Upgrade Application for Multiple Projector Maintenance: Administrators can centrally upgrade firmware on multiple BenQ projectors that are on the same local network via LAN (up to 253 projectors,) deploying the latest updates to all devices at once. This new application can upgrade firmware with a friendlier interface.
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Digital Shrink without Distortion: used for fine tuning the screen size via OSD menu when the image is not precisely aligned on the desired frame.
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Remote Control Quick Install Hotkey: sets up the projector with significant time savings for managers performing initial projector installation work.
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Unmatched Readability: With industry-leading high contrast, BenQ education projectors utilize advanced DLP-optimized optical lens systems to provide precise readability and crisp resolution for every single sub-pixel.
- Long-Lasting Picture Quality: With industrial-grade durability from DLP technology, BenQ education projectors maintain long-lasting picture perfection by eliminating color decay. With over two million micromirrors and minimal heat buildup, the DLP chip endures over 100,000 hours without degradation.
Notes:
1 BenQ exclusive annotation software QWrite™ is compatible with BenQ PointWrite™ module.
2 Developed by Extron, IP Link driver allows device monitoring, control, and support over LAN when MediaLink controller, IP Link Ethernet control interface, or other IP Link-enabled device is installed.
Specifications
Display
Projection System | DLP |
DMD Size | 0.65" |
Native Resolution | WXGA (1280 x 800) |
Brightness | 3600 ANSI lumens |
Contrast Ratio* | 3,000,000:1 |
Display Color | 30-bit (1.07 billion colors) |
Native Aspect Ratio | 16:10 |
Selectable Aspect Ratio | 16:10, 16:9, 4:3, Auto, Real |
Light Source | Laser |
Light Source Life** | Normal 20000 hrs |
Optical
Throw Ratio | 0.52 |
Zoom Ratio | Fixed |
Lens | F/2.79 (Wide) f = 7.46 mm |
Projection Offset (Full-Height) | 106% |
Keystone Adjustment | 2D, Vertical ± 30 degrees; Horizontal ± 30 degrees |
ANSI Uniformity (Min.) | -60% |
Clear Image Size | 60" ~ 120" |
Image Size | 60" ~ 120" |
Picture
Picture Modes | 3D, Bright, Infographic, Presentation, sRGB, User 1, User 2, Vivid |
Color Wheel Segment (SSI) | WR |
Color Wheel Speed | 2X (50 Hz), 2X (60 Hz), 3D (144 Hz) |
Rec. 709 Coverage | 90% |
Compatibility
Input Lag | 51 ms (1080p@60Hz) |
Resolution Support | VGA (640 x 480) to WUXGA_RB (1920 x 1200) *RB=Reduced blanking |
HDTV Compatibility | 1080i, 1080p, 480i, 480p, 576i, 576p, 720p |
Video Compatibility | NTSC, PAL, SECAM |
3D Compatibility | Frame Packing, Frame Sequential, Side by Side, Top Bottom |
Audio
Built-in Speaker
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10 W x1 |
Audio L/R in (RCA)
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1 |
Audio out (3.5 mm Mini Jack)
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1 |
Audio in (3.5 mm Mini Jack)
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1 |
Special Features
Security (anti-theft) | |
Features |
Connectivity
I/O Port |
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Environment
Power Supply | AC 100 to 240 V, 50/60 Hz |
Typical Power Consumption | 283 W |
Standby Power Consumption | < 0.5 W |
Network Stand-by Power Consumption | < 2 W |
Acoustic Noise (Typ./Eco.) | 33/29 dB |
Acoustic Noise (Typ./Eco.) with dust filter | 35/31dB |
Operating Temperature | 32 ~ 104°F (0 ~ 40°C) |
Dimension and Weight
Product Dimensions (WxHxD) | 16.1" x 6.2" x 10.7" (410 x 158 x 272 mm) |
Net Weight | 12.3 lb (5.6 kg) |
Accessories
Standard |
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Optional |
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OSD
On Screen Display / Launcher Language | 30 Languages |
Warranty
3-Year warranty
Notes:
* The contrast ratio is measured by the Full On/Full Off standard.
** Light source life results will vary depending on environmental conditions and usage. Actual product's features and specifications are subject to change without notice.