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BenQ MW851UST WXGA 2500 ANSI Lumens Ultra Short Throw - Refurbished

SKU-MW851UST-002 Refurbished

Model Highlights

A Widescreen View for Small Classrooms

Featuring a 0.4 ultra short-throw ratio, 13,000:1 ultra-high contrast ratio and WXGA native resolution, the MW851UST only needs 0.74 meters to bring a 95” well-defined widescreen picture to life in small-sized classrooms. Plus, 2500 ANSI lumens further ensure clear viewing under low ambient light.

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World-Leading SmartEco Technology for a Greener Environment

Schools today face the challenge of introducing new technologies and teaching tools into their classrooms and cut down on energy costs. In the effort to help schools meet the learning needs of their students as well as the green goals set by the school district, BenQ has collaborated with Philips Lighting in developing the perfect solution – the SmartEco Technology.

The SmartEco Technology brings a new way of operating the projector lamp system. Intuitive to use and environmentally friendly, this technology brings together the finest picture quality and maximum energy saving. With the SmartEco Technology, students and teachers get to make the most out of their classroom experience – and schools reduce the total cost of ownership with extended lamp life and lowered maintenance needs.


Eco Blank Mode

The Eco Blank mode allows teachers to blank the projection screen whenever they need to direct their students’ focus back on them – or simply when the projector is not in use. When activated, this special feature dims the lamp power automatically, lowering the total power consumption by up to 70%.


Full Power On
100% Lamp Power
Attention on the Projection Screen


Eco Blank Mode On
30% Lamp Power at the Lowest
Attention on the Class Instructor

SmartEco Mode

The SmartEco mode is designed to use only the exact amount of lamp power a projector needs to deliver the best contrast performance. With this feature, schools get to provide students and teachers uncompromised projection quality and reduce the total cost of ownership by extending the lamp life and lowering power consumption.


Normal Mode
296W Projector Power
by Average


SmartEco Mode
Enhanced Details in Darkened Scenes
163W Projector Power Consumption
by Average

No Source Detected Mode

There will be times when a projector is turned on without a display source, such as a classroom PC or notebook. To avoid a projector from running with full lamp power, BenQ created the No Source Detected Mode to lower the projector lamp brightness to 30% after the projector has remained unconnected to a display source for more than three minutes.


Source Detected
100% Lamp Power


No Source Detected
30% Lamp Power

<0.5W Standby Power Consumption

When inactive, the MW851UST keeps power consumption to a minimum with <0.5 W standby power. This helps extend the projector lamp life as well as reduce energy costs.

Hassle-Free Projector MaintenanceUpper Lamp Door for Easy Lamp Access

The upper lamp door is designed for IT managers to replace the projector lamp safely and quickly. Should the projector lamp go out in the middle of the class, it can be replaced without delaying the class.

Security Bar to Discourage Theft

A security bar is designed to enable projector managers to secure their classroom projectors either to a ceiling mount or an audiovisual equipment cart, adding extra “physical” security to a classroom projector. BenQ’s education projectors are each built with a security bar to help discourage a good number of opportunistic thieves.

LAN Control with Crestron and PJ-Link

LAN Control is designed to help IT managers perform day-to-day projector maintenance and repair tasks efficiently and effectively – offering them full access and control over every projector directly from their workstations. The MW851UST offers seamless support for the Crestron and PJ-Link LAN Control system.


The Perfect Sound SolutionBuilt-in 20W Big Audio Power

The MW851UST features two built-in 10W speakers to help enrich every lesson with top quality audio performances. These speakers are sealed and secured within the projector housing by BenQ’s anti-shake design to ensure projection stability at all times.

Microphone Input Support

With the microphone input, teachers get to reach every student with straining their voice. All they need to do is plug in the microphone or microphone headset to get started!

ecoFACTS Label

ecoFACTS can tell you how eco-friendly BenQ products are!

Development of eco-friendly products, BenQ doesn't just want to comply with green regulations passively, but also to actively develop eco-friendly products!

ecoFACTS declares BenQ's greatest efforts on the replacement of hazardous substances, material selection, packaging design, energy-saving design and other aspects of the products.



Model MW851UST
Projection System DLP
Native Resolution WXGA (1280x800)
Brightness* (ANSI Lumens) 2500
Contrast Ratio 13000:1
Display Color 1.07 Billion Colors
Lens F=2.65, f=5.22mm
Aspect Ratio Native 16:10 (5 aspect ratio selectable)
Throw Ratio 0.36 (87"@67.5cm)
Image Size (Diagonal) 60”-300”
Zoom Ratio Fixed
Lamp Mode (Normal/Economic/SmartEco/LampSave/LumenCare)* 230W, 3500/5000/6500/NA/NA hours
Keystone Adjustment 1D, Vertical ± 15 degrees (Manual)
Projection Offset 144%
Resolution Support VGA (640 x 480) to UXGA (1600 x 1200)
Horizontal Frequency 31K-102KHz
Vertical Scan Rate 23-120Hz
Interface Computer in (D-sub 15pin) x 2 (shared with Component video)
Monitor out (D-sub 15pin) x1
Composite Video in (RCA) x1
S-Video in (Mini DIN 4pin) x1
Audio in (Mini Jack) x2
Audio L/R in (RCA) x2
Audio out (Mini Jack) x1
Microphone in (Mini Jack) x1
Speaker 10Wx2
LAN (RJ45) x 1 (LAN Control )
HDMI V1.3 x 1 
USB (Type Mini B) x 1 (USB Download & Page up/down)
DC 12V Trigger (3.5mm Jack) x1
RS232 (DB-9pin) x1
Dimensions (W x H x D mm) 339 x 236.9 x 322.8
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+
PC: 60Hz Frame Sequential 3D resolutions up to WXGA
Video: 60Hz Frame Sequential 3D for resolutions up to 480i
*Please click to know more details about 3D Support and Compatibility.
Weight 5.3kg (11.7lbs)
Audible Noise (Normal/Economic Mode) 33/27 dBA
Power Supply 100 to 240 VAC, 50 to 60 Hz
Power Consumption Normal mode: 321W (Typical), Standby<0.5W
SmartEco mode: 160W (will vary depending on the projected content)
On-Screen Display Languages Arabic/Bulgarian/ Croatian/ Czech/ Danish/ Dutch/ English/ Finnish/ French/ German/ Greek/ Hungarian/Hindi/Italian/ Indonesian/ Japanese/ Korean/ Norwegian/ Polish/ Portuguese/ Romanian/ Russian/ Simplified Chinese/Spanish/ Swedish/ Turkish/ Thai/ Traditional Chinese (28 Languages)
Picture Modes Dynamic/Presentation/sRGB/Cinema/User 1/User 2
Accessories (Standard) Remote Control w/ Battery
Power Cord (by region)
User Manual CD
Quick Start Guide
VGA(D-sub 15pin) Cable
Accessories (Optional) Presentation Plus
Spare Lamp Kit
Wall Mount (T/R 0.4)
3D Glasses

*Lamp life results will vary depending on environmental conditions and usage. Actual product's features and specifications are subject to change without notice.


One year limited warranty