ViewSonic LS921WU 6,000 ANSI Lumens WUXGA Short Throw Laser Projector
PRODUCT DESCRIPTION
ViewSonic LS921WU 6,000 ANSI Lumens WUXGA Short Throw Laser Installation Projector - 3 Years Local Warranty
6,000 Lumens From a Short Throw
The ViewSonic LS921WU fills a 100" screen from about 1.74 m with a 0.81–0.89 short throw ratio and 1.1x optical zoom, delivering 6,000 ANSI lumens at native 1920 x 1200 without presenter shadows.
2nd-Generation Laser Phosphor
A 3,000,000:1 contrast ratio and a laser light source rated 20,000 hours (Normal) and up to 30,000 hours (SuperEco), with no lamp changes and support for 24/7 operation.
4K HDR Input
Dual HDMI 2.0 (HDCP 2.2) accept 4K HDR/HLG sources, while wide ±50% vertical and ±23% horizontal lens shift, ±40° H/V keystone, 360° projection and portrait mode simplify installation.
Built-in HDBaseT
Run uncompressed audio and video up to 100 m over a single Cat5e/6 cable, with LAN control for Crestron, AMX, Extron, PJLink and ATEN.
Need projectors for several meeting rooms, classrooms or venues? Email sales@sourceit.com.sg for volume pricing and delivery lead time.
ViewSonic LS921WU Datasheet — Technical Specifications
General
| Product Name | ViewSonic LS921WU 6,000 ANSI Lumens WUXGA Short Throw Laser Installation Projector |
| Model | LS921WU |
| Local Warranty (Singapore) | 3 years on-site limited warranty on parts and labour (pick-up and drop-off); laser light source, no lamp to replace |
Optical
| Projection System | 0.48" WUXGA DLP |
| Native Resolution | 1920 x 1200 (WUXGA) |
| Brightness | 6,000 ANSI lumens |
| Contrast Ratio | 3,000,000:1 |
| Display Colour | 1.07 billion colours |
| Light Source | Laser phosphor |
| Light Source Life | 20,000 hours (Normal); 30,000 hours (SuperEco) |
| Lens | F=1.83–1.86, f=8.6–9.4 mm |
| Throw Ratio | 0.81–0.89 |
| Optical Zoom | 1.1x |
| Digital Zoom | 0.8x–2.0x |
| Image Size | 60"–200" |
| Throw Distance | 1.04–3.83 m (100" at 1.74 m) |
| Projection Offset | 0% |
| Lens Shift | Vertical ±50%; horizontal ±23% |
| Keystone | ±40° horizontal, ±40° vertical |
| Input Lag | 16 ms |
Compatibility
| Resolution Support | VGA (640 x 480) to 4K (3840 x 2160) |
| HDTV Compatibility | 480i, 480p, 576i, 576p, 720p, 1080i, 1080p, 2160p |
| Video Compatibility | NTSC, PAL, SECAM |
| Horizontal Frequency | 15–135 kHz |
| Vertical Scan Rate | 23–120 Hz |
Connectivity
| HDMI | 2 x HDMI 2.0 (HDCP 1.4/2.2) |
| HDBaseT | 1 |
| Computer In | 1 (shared with component) |
| Composite / S-Video | 1 / 1 |
| Monitor Out | 1 |
| Audio In | 1 x 3.5 mm; 1 x RCA (L/R) |
| Audio Out | 1 x 3.5 mm |
| 3D VESA Sync | 1 |
| 12 V Trigger | 1 x 3.5 mm |
| USB Power | 1 x USB Type-A, 5 V / 1.5 A |
| USB Service | 1 x USB Type-A |
| Control | 1 x RS232 (DB9 male); 1 x RJ45 LAN control |
| Speaker | 10 W x 2 |
Power & Environmental
| Power Supply | 100–240 V ±10%, 50/60 Hz |
| Power Consumption | 450 W (Normal); <0.5 W standby |
| Audible Noise | 36 dB (Normal); 29 dB (Eco) |
| Operating Temperature | 0–40 °C |
Physical
| Dimensions (W x D x H) | 405 x 305 x 145 mm (with adjustment foot) |
| Net Weight | 6.5 kg |
| Packing Dimensions | 515 x 490 x 276 mm |
| Gross Weight | 9 kg |
| OSD Languages | 23 |
Compatibility & Software Support
Sources
Dual HDMI plus a built-in HDBaseT receiver, so uncompressed audio/video and control signals can run up to 100 m over a single Cat5e/6 cable from the lectern or AV rack. VGA, composite and S-Video inputs support legacy sources.
Room Control
RJ45 LAN control is compatible with Crestron, AMX, Extron, PJLink and ATEN; RS232 and a 12 V trigger for motorised screens are also provided. Firmware can be updated over USB.
Typical Use
Auditoriums, lecture halls, large meeting rooms, houses of worship, museums and projection-mapping installations.
Package Contents & ViewSonic Laser & LED Projector Ordering Information
In the Box
LS921WU projector, power cord, VGA cable, remote control with laser pointer, quick start guide.
Optional Accessories
| Wall/ceiling mount | PJ-WMK-007 |
| HDBaseT dongle | HB10B |
| Wireless casting kit | WPD-900 |
ViewSonic Laser & LED Business Projectors
| Model | Key feature |
| LS500WHE | 3,000 lm WXGA, LED |
| LSD400W | 4,000 lm WXGA, laser |
| LSD400HD | 4,000 lm 1080p, laser |
| LS711HD | 4,200 lm 1080p, short throw laser |
| LS740W | 5,000 lm WXGA, laser |
| LS740HD | 5,000 lm 1080p, laser |
| LS832WU | 5,000 lm WUXGA, ultra short throw laser |
| LS860WU | 5,000 lm WUXGA, short throw laser, HDBaseT |
| LS920WU | 6,000 lm WUXGA, laser, 1.6x zoom |
| LS921WU (this listing) | 6,000 lm WUXGA, short throw laser |
Datasheet & Downloads
| ViewSonic datasheet | LS921WU Datasheet |
| User guide | LS920WU/LS921WU User Guide (PDF, English) |
| Quick start guide | LS921WU Quick Start Guide (PDF) |
| RS-232/LAN control | LS920WU/LS921WU RS-232 Command Table R1.00 (PDF) |
| ViewSonic product page | LS921WU on viewsonic.com Singapore |
Need a PDF sent directly? Email sales@sourceit.com.sg quoting LS921WU.
Frequently Asked Questions — ViewSonic LS921WU
How big an image can I get?
From 60" up to 200". A 100" image needs about 1.74 m from the lens.
Can I shift the image without moving the projector?
Yes. Lens shift is ±50% vertical and ±23% horizontal, adjustable without tools.
Can I run the video over one network cable?
Yes. The built-in HDBaseT receiver takes audio, video and control over a single Cat5e/6 cable up to 100 m.
Does it need lamp replacements?
No. The laser light source is rated 20,000 hours (Normal) and up to 30,000 hours (SuperEco), and supports 24/7 operation.
What warranty do I get?
3 years on-site limited warranty on parts and labour (pick-up and drop-off service on Singapore's main island). Supplied by SourceIT with a GST invoice.






