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BenQ LW820ST WXGA 3600 Lumens Short-Throw Laser Projector

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Let’s check the overview

  • Model – BenQ LW820ST
  • Type – Short-Throw Laser Projector
  • Resolution – WXGA (1280 x 800)
  • Contrast Ratio – 3,000,000:1
  • Light Output (lumens) – 3600 Lumens
  • Light Source Life (Hours) – 20000 Hours (min)

৳ 122,000.00

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Display System 1-Chip 0.65″ DC3 DMD DLP
Native Chip Resolution 1280 x 800 (WXGA)
Supported Resolutions Maximum: WUXGA – 1920 x 1200
Minimum: VGA – 640 x 480
Max Brightness 3600 Lumens
Offset 106.1% ± 2.5%
Aspect Ratio Native: 16:10
Contrast Ratio 100,000:1
DLP Link 3D Yes
Supported 3D Formats Frame Sequential (up to 720p)
Frame Packing (up to 1080p)
Side by Side (up to 1080p)
Top Bottom (up to 1080p)
Color Depth 10-Bit (1.07 Billion Colors)
Scan Vertical: 23 to 120 Hz
Horizontal: 15 to 102 Hz
Focus Manual
Lens f/2.79 (f = 7.46 mm)
Optical Zoom None
Throw Ratio 0.52:1
Projection Size 60 – 120″ / 152.40 – 304.80 cm
Keystone Correction Vertical: ± 30°
Digital Zoom 2x
Ceiling Mountable Yes
Rear Screen Projection Yes
Built-In Speaker Yes
Speaker Power 10W
Input/Output Connectors
Inputs/Outputs 1 x HDMI (HDMI Type-A) Video
1 x HDMI with MHL Support (HDMI Type-A) Video
2 x VGA (DE-15/DB-15) Video
1 x VGA (DE-15/DB-15) Video Output
1 x Composite (RCA) Video Input
1 x S-Video (4-Pin DIN) Video Input
1 x 1/8″ / 3.5 mm Mini Audio Input
1 x 2RCA Audio Input
1 x 1/8″ / 3.5 mm Mini Microphone Input
1 x 1/8″ / 3.5 mm Mini Audio Output
1 x RJ45 LAN
1 x RS-232 (DE-9/DB-9) Control Input
1 x Mini-USB Power
1 x Mini-USB Service
Wireless LAN / Wi-Fi No, Optional Adapter Available
Light Source Laser Phosphor
Expected Lamp Life Full Brightness: 20,000 Hours
Fan Noise Full Brightness: 33 dB
Medium Brightness: 29 dB
Security Cable Lock Slot
Supported Languages Arabic
Simplified Chinese
Traditional Chinese
AC Input Power 100 to 240 VAC, 50 / 60 Hz at 3 A
Power Consumption Full Brightness: 320 W
Medium Brightness: 283 W
Low Brightness: 234 W
Operating Altitude 9842′ / 3000 m
Operating Temperature 32 to 104°F / 0 to 40°C
Storage Temperature -4 to 140°F / -20 to 60°C
Operating Humidity 10 to 90%
Storage Humidity 10 to 90%
Dimensions (W x H x D) 16.1 x 6.2 x 10.7″ / 410.0 x 158.0 x 272.0 mm
Weight 12.35 lb / 5.6 kg
Packaging Info
Package Weight 16.055 lb
Box Dimensions (LxWxH) 19 x 15.2 x 10″



BenQ LW820ST
BlueCore Laser Projector with Short Throw, WXGA


Uninterrupted Learning Through Long-Lasting Projection.

The World’s No.1 DLP brand BenQ leads the way with futureproof interactive projectors, featuring innovative BlueCoreTM laser technology and superior dustproofing design for superb picture quality and maintenance-free operation. Maximizing education investment and collaborative learning with short throw projection, BenQ LX820ST / LW820ST utilize the unparalleled qualities of a laser light source to achieve optimized performance, long-lasting reliability, energy efficiency and environmentally friendly choice for the leading school.

BenQ BlueCoreTM Laser Technology Laser Technology for Pure Color

Powerful BlueCore laser projectors employ dual color wheel systems to unleash outstanding color performance by increasing color ratios and purity of RGBY color, greatly enhancing color saturation and brilliancy at the same lumen output of lamp-based projectors to deliver superior viewing experiences.

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.

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 micromirrors that reflect pure light through the color wheel, the DLP chip is hermetically sealed to resist heat for over 100,000 hours without degradation.

Superior Dustproofing Design to Prolong Projector Lifespan

BenQ LW820ST is designed with Dust GuardTM technology including sealed laser modules to 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.

Sealed Engine for Laser Light Source

With a fully enclosed laser light source and an innovative sealed engine design powered by BenQ Dust GuardTM technology, BlueCore education projectors guarantee 20,000 hours of maintenance-free operation to prevent extra expenses on lamp replacement and maintenance. The laser light source resists brightness decay, making BenQ laser education projectors highly stable while ensuring high brightness performance through years of usage.

Anti-Dust Accumulation Sensor Resists Dust Buildup

Incorporating color wheel sensors with an ingenious anti-dust accumulation feature, 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.

Brilliant Display of Lecture Content

LW820ST’s powerful BlueCoreTM 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.

Laser-Enabled Ultra-High Contrast

LW820ST laser projectors create 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 for flexible performance capability.

Instant Power-On

BenQ BlueCoreTM education projectors can be turned on and off instantly to significantly reduce setup time compared to other lamp-based projectors.

20,000 Hour Long-Lasting Performance

With a fully sealed laser light source and an innovative sealed laser engine design, BenQ BlueCoreTM laser education projectors deliver 20,000 hours of maintenance-free operation, preventing extra expenses on lamp replacement and maintenance. The laser light source resists color and brightness decay over time, offering significantly more reliable performance after a period of operation.

Unobstructed Instruction Without Space Constraints

Offering a big screen in short distances with a 0.49 short-throw ratio, LW820ST eliminates distracting shadows and glare for students and teachers to engage and collaborate freely in front of the board.

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.

Model – BenQ LW820ST, Category – Business & Education Projectors, Projection System – Short-Throw Laser Projector, Display Type – Single chip DLP, Resolution – WXGA (1280 x 800), Max. Supported Resolution – VGA (640 x 480) to WUXGA_RB (1920 x 1200), Light Output (lumens) – 3600 Lumens, Light Source Type – Laser, Light Source Life Hours (Normal) – 20000 Hours (min), Contrast Ratio – 3,000,000:1, Color Depth – 1.07 Billion Colors, Throw Ratio – 0.52, Min. Image/Screen Size (Inch) – 60 Inch, Max. Image/Screen Size (Inch) – 120 Inch, Native/Compatible Aspect Ratio – 16:10, Zoom Ratio – Fixed, Keystone Correction – +-30 degrees Vertical, Chip Size – 0.65 Inch DC3 DMD Chip, Speaker – 10Watt x 1, HDMI – 2, VGA/D-Sub – 3, USB – 1 x USB Type-A, 1 x USB Type Mini B, Audio Port – Audio in, Audio out, LAN – Yes, MHL – Yes, Additional I/O Ports & Connectivity – 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, Video Compatibility – NTSC, PAL, SECAM, Power Source – 100 – 240V AC, Max 320W. Normal 283W. Eco 234W. (Power Consumption), Power Consumption – Max: 320W. Normal: 283W. Eco: 234W., Dimension – 410 x 158 x 272mm, Weight – 5.6Kg, Features – Blank for True Black, Digital zoom(2x), Digital Shrink(0.75x), LAN Control, AMX/ PJ Link/Crestron/Extron IPL Compatible. MDA Compatibility Optional Wireless Display, Optional Interactive module (PW02, PT12) compatibility.Optional Dust Filter, Others – Display Color: 1.07 Billion Colors, Light Source: Laser, Lens Control: Manual Focus, Projection Offset: 106.1 +/- 2.5%, Projection Size: 60 Inch-120 Inch, Security: Kensington Lock, Horizontal Frequency: 15KHz-102KHz, Vertical Scan Rate: 23 – 120Hz, HDTV Compatibility: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, Dimensions: 410 x 158 x 272mm, Noise Level (Normal/Eco): 33/29 dBA (without dust filter), Specialty – TURNING A NEW PAGE IN EDUCATION, SHARING, COLLABORATING AND INTERACTING, Uninterrupted Learning Through Long-Lasting Projection, BlueCore Laser Projector with Short Throw, WXGA, Creating Lasting Lessons with Striking Picture Quality, BenQ BlueCore Laser Technology Laser Technology for Pure Color, Superior Bright, Superior Performance, Superior Durability, Precision-Aligned High-Output Laser Source, Secondary Yellow-Infused Color Wheel, Hermetically Sealed DLP Chip, Superior Dustproofing Design to Prolong Projector Lifespan, Sealed Engine for Laser Light Source, Anti-Dust Accumulation Sensor Resists Dust Buildup, Brilliant Display of Lecture Content, Long Lasting High Brightness, Laser-Enabled Ultra-High Contrast, Package Contents – Power Cord 3m (by region), Remote Control for WW RCE015 (5J.JJF06.001), Remote Control for J sku RCE013J (5J.JGS06.001), AAA Batteryx2, VGA cable 1.8m, Warranty Card (by region), QSG (4J.JJJ01.001), User Manual CD (5B.JJJ01.001), Accessories (Optional) – Wall mount WM06G3 (5J.J4R10.011), 3D Glasses (5J.J9H25.002), Wireless Dongle: QCast Mirror (5A.JH328.10X), Wireless Dongle: QCast (5J.JCK28.X01), Dust Filter (5J.JJF14.001), Necessary Accessories (Not Included) – 1. Projector Screen: 115.676.01 Super View 70×70 Inch Tripod Projector Screen, 2. Ceiling Mount Kits: 130.761.69 K2 Ceiling Mount Kits White Color For Multimedia Projector (Height Adjustable 15 Inch Normally & 11 Inch Expandable), 3. HDMI Cable: 61.471.12 Havit HDMI Male to Male 5 Meter Cable, 4. Wireless Presenter: 71.760.01 Micropack WPM-06 Black Pocket Wireless Presenter, 5. Wireless Display Adapter: 44.761.04 K2 Miracast Measy A2W HDMI Portable Wireless Display Adapter, Warranty – 2 year (Lamp 365 Days/1000 Hours Which One Comes First), Country of Origin – Taiwan, Made in/ Assemble – China

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