The LW820ST WXGA 3600-Lumen Short-Throw Laser Projector from BenQ uses BlueCore Laser technology to deliver high color performance. It has a brightness of 3600 ANSI lumens and a contrast ratio of 100,000:1. This projector has a manual focus lens that supports a throw ratio of 0.52:1.
This projector features two HDMI ports (one with MHL), two VGA inputs, RCA composite, and S-video inputs. There are 3.5mm audio input and output jacks along with a 10W built-in speaker. A 9.8' power cord, a remote controls, two AAA batteries, and a 5.9' VGA cable are included. A wireless display, PW02/PT12 interactive module, and dust filter are available separately.
BlueCore laser technology with precision-aligned, high-output laser source, secondary yellow-infused color wheel, and hermetically sealed DLP chip
DustGuard technology includes sealed laser modules to protect the laser bank
Color wheel sensors have anti-dust accumulation that resists dust buildup
Dual color wheel system produces high color performance by increasing color ratios and purity of RGBY colors
3600 ANSI lumens provides brightness efficiency at the same level as IFPs for clear, sharp images and text even in large, bright classrooms
Custom brightness function allows manual light output adjustments in 1% increments
Creates clear images with 100,000:1 high contrast ratio for true deep blacks
Instant power on and off to reduce setup time
20,000 hours of maintenance-free operation
Big screen in short distances with a 0.52:1 short-throw ratio eliminates distracting shadows and glare for students and teachers to engage and collaborate in front of the board
Range of resolutions and projected image sizes to meet diverse classroom needs
PointWrite interactive module PW40U and QWrite software (available separately) provide truly collaborative learning environments where students and teachers work together using intuitive templates
Using QCast or Instashow accessories (available separately), teachers and students can bring their own smart devices and computers to stream documents, images, and Full HD videos to this projector
Compatible with leading projector control systems including Crestron, AMX, PJ Link, and Extron IP Link for network control via LAN
Multiple Display Administrator (MDA) software enables powerful centralized monitoring, control, and power scheduling across the school's projector network from a single computer
Administrators can centrally upgrade firmware on multiple networked BenQ education projectors on the same local network via LAN (up to 253 projectors), deploying the latest updates to all devices at once
0.75x digital shrink is used for fine tuning the screen size via OSD menu when the image is not precisely aligned on the desired frame
The remote control's quick install hotkey sets up the projector with significant time savings for managers performing initial projector installation work
DLP-optimized optical lens systems provide precise readability and resolution for every sub-pixel
IR receiver on front and top
Kensington lock slot