ViewSonic · 5,000–7,999 lumens · 4K
ViewSonic LS901-4K
5,500lumens
3840×2160native
1.2–2.04throw ratio
4.9 kgweight
The ViewSonic LS901-4K is a 0.65" DLP x 1 projector rated at 5,500 lumens with a native resolution of 3840×2160. It uses a laser phosphor light source rated for 20,000 hours / 30,000 hours (Eco). Its lens has a throw ratio of 1.2–2.04:1. Released February 2025.
Throw distance table
Distance from lens to surface for each image width (16:9 (4K HD)). Calculated as throw ratio × width; check the manufacturer's lens calculator before installation.
| Image width | Height | Standard lens 1.2–2.04:1 |
|---|---|---|
| 2 m (6.6 ft) | 1.12 m | 2.4–4.1 m |
| 3 m (9.8 ft) | 1.69 m | 3.6–6.1 m |
| 4 m (13.1 ft) | 2.25 m | 4.8–8.2 m |
| 5 m (16.4 ft) | 2.81 m | 6.0–10.2 m |
| 6 m (19.7 ft) | 3.38 m | 7.2–12.2 m |
| 8 m (26.2 ft) | 4.5 m | 9.6–16.3 m |
| 10 m (32.8 ft) | 5.62 m | 12.0–20.4 m |
| 12 m (39.4 ft) | 6.75 m | 14.4–24.5 m |
| 15 m (49.2 ft) | 8.44 m | 18.0–30.6 m |
| 20 m (65.6 ft) | 11.25 m | 24.0–40.8 m |
| 25 m (82.0 ft) | 14.06 m | 30.0–51.0 m |
| 30 m (98.4 ft) | 16.88 m | 36.0–61.2 m |
Open in the throw-distance calculator →
Maximum image size for projection mapping
Largest image that keeps a 10:1 contrast against ambient light on a light, matte surface (80% optical efficiency). See how this is calculated.
| Ambient light | Max area | Max width × height |
|---|---|---|
| Dark rural site (1 lux) | 489 m² | 29.5 × 16.6 m |
| Quiet street at night (5 lux) | 98 m² | 13.2 × 7.4 m |
| Lit city square (15 lux) | 33 m² | 7.6 × 4.3 m |
| Bright urban area (30 lux) | 16 m² | 5.4 × 3.0 m |
| Indoor, lights dimmed (50 lux) | 10 m² | 4.2 × 2.3 m |
Full specifications
| 3D Modes | Full HD 3D |
|---|---|
| Aspect Ratio | 16:9 (4K HD) |
| Best Used For | Home Theater Gaming Golf Simulator |
| Brightness | 5,500 Lumens (ANSI) 1 |
| Color Processing | 10-bit |
| Connection Panel | Audio Out: Mini Jack HDMI 2.0 (HDCP 2.2) x 2 Network: RJ-45 RS232: DB-9pin USB: A |
| Data Modes | MAX 3840x2160 |
| Digital Keystone | Horizontal & Vertical |
| Digital Zoom | Yes |
| Display Type | 0.65" DLP x 1 |
| Features | Full HD 3D Geometric Correction HDR HDMI CEC Crestron RoomView™ |
| Image Size | 30.03" - 300.03" |
| Included Lens | 1.7x manual zoom , manual focus |
| Internal Speakers | 15.0 Watts × 2 |
| Lens Shift | Vertical +0.00% / -21% |
| Light Source | Laser Phosphor |
| Light Source Life | 20,000 hours / 30,000 hours (Eco) |
| MSRP | $2,299 (USD) |
| Power | 245 Watts 100V - 240V |
| Projector Size | 5.20" x 13.30" x 11.00" (HxWxD) |
| Released | February 2025 |
| Resolution | 3840x2160 |
| Status | Shipping |
| Street Price | $2,300 (USD) |
| Throw Distance | 4.5' - 26.2' Calculate Throw Distance |
| Throw Ratio | 1.20:1 - 2.04:1 (D:W) |
| Video Modes | 720p, 1080i, 1080p/60 |
| Warranty | 3 Years |
| Weight | 10.7 lbs |
Specifications compiled from ProjectorCentral and manufacturer data. Prices change — verify with dealers.
Similar projectors
| Model | Lumens | Resolution | Light source | Throw ratio | Street price |
|---|---|---|---|---|---|
| BenQ LK935 | 5,500 | 3840×2160 | Laser Phosphor | 1.36–2.18:1 | $4,499 |
| Panasonic PT-FRQ50BU7 | 5,200 | 3840×2160 | Laser Phosphor | 1.45–2.92:1 | $3,833 |
| Panasonic PT-FRQ50WU7 | 5,200 | 3840×2160 | Laser Phosphor | 1.45–2.92:1 | $4,299 |
| BenQ LK936ST | 5,100 | 3840×2160 | Laser Phosphor | 0.81–0.89:1 | $4,899 |
| Optoma ZK551 | 5,100 | 3840×2160 | Laser Phosphor | 1.4–2.24:1 | $2,099 |
| LG ProBeam BU60RG | 6,000 | 3840×2160 | Laser Phosphor | 1.3–2.08:1 | $3,999 |
| Sharp XP-P601Q-W | 6,000 | 3840×2160 | Laser Phosphor | 1.25–2.0:1 | $5,819 |
| BenQ AK900ST | 6,000 | 3840×2160 | Laser Phosphor | 0.82–0.89:1 | $5,999 |