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5500 ANSI Lumens 4K Laser Installation Projector
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The ViewSonic LS901-4K is a high-performance 4K UHD laser installation projector delivering 5,500 ANSI lumens of brightness and HDR support for exceptional image clarity and colour precision. Part of ViewSonic’s Luminous Superior Series, it’s designed for professional environments such as museums, lecture halls, and large meeting spaces. With support for the 21:9 aspect ratio and Microsoft Teams Rooms integration, it ensures an immersive and future-ready collaboration experience. Its advanced 3rd-generation Laser Phosphor technology provides up to 30,000 hours of operation, combining stunning visuals with reduced maintenance and cost of ownership.
Key Features
- True 4K HDR Visuals: 3840 × 2160 resolution with HDR/HLG support for ultra-detailed, lifelike image reproduction.
- High Brightness and Contrast: 5,500 ANSI lumens with a 3,000,000:1 dynamic contrast ratio ensures vivid performance in bright spaces.
- 21:9 Aspect Ratio Support: Optimised for Microsoft Teams Rooms and widescreen conference environments.
- Flexible Installation: Features 1.7x optical zoom, vertical lens shift, H/V keystone correction, and 360° projection capability.
- Versatile Projection Options: Supports portrait mode and large image sizes up to 300 inches for maximum versatility.
- Comprehensive Control: Integrated LAN and RS232 ports for network-based monitoring and control via Crestron, AMX, Extron, and PJ Link.
- Powerful Audio: Dual 15W speakers deliver clear, room-filling sound without the need for external amplification.
- Long-Lasting Laser Engine: 30,000-hour light source lifespan in Eco mode for consistent brightness and reliability.
- Quiet and Efficient: Operates at only 25 dB (Eco mode) for distraction-free use in professional or educational settings.
Specifications
| Projection System | 0.65” 4K UHD DLP | 
| Native Resolution | 3840 × 2160 (4K UHD) | 
| Brightness | 5,500 ANSI Lumens (6,000 Center Lumens) | 
| Contrast Ratio | 3,000,000:1 (Dynamic) | 
| Light Source | 3rd Gen Laser Phosphor (20,000–30,000 hours) | 
| Lens | F=2.3–3.0, f=17.63–27.9 mm, 1.7x optical zoom | 
| Throw Ratio | 1.2–2.04 | 
| Image Size | 30"–300" | 
| Keystone Correction | ±30° H/V | 
| Lens Shift | Vertical: 0%, -21% | 
| Inputs | HDMI 2.0 ×2 (HDCP 2.3) | 
| Outputs | Audio Out (3.5mm), Dual 15W Speakers, USB-A (5V/1.5A) | 
| Control | RS232, RJ45 (LAN Control), USB-A (Service) | 
| Power Consumption | 245W (Normal), <0.5W (Standby) | 
| Dimensions (W × D × H) | 337 × 280 × 132 mm | 
| Weight | 4.85 kg (Net), 6.8 kg (Gross) | 
| Operating Temperature | 0–40 °C | 
| Included Accessories | Power Cord, Remote Control, Quick Start Guide, Warranty Card | 
The ViewSonic LS901-4K brings together exceptional image fidelity, installation flexibility, and long-term reliability—making it a powerful choice for high-end business, educational, and entertainment applications. With advanced laser technology, 4K HDR quality, and smart integration options, it’s the ideal projection solution for large-format, professional environments.
Application Examples
| Conference Rooms & Microsoft Teams Spaces | Delivers sharp 4K visuals with 21:9 aspect ratio compatibility, ensuring immersive video conferencing and presentations. | 
| Lecture Halls & Classrooms | Projects detailed, vibrant visuals suitable for teaching environments requiring clarity, brightness, and reliability. | 
| Museums & Galleries | Ideal for artistic or informational displays, offering accurate colour reproduction and long-lasting, 24/7 performance. | 
| Corporate Installations | Seamlessly integrates with LAN and control systems, supporting dynamic digital signage or large meeting applications. | 
| Event Venues & Auditoriums | Provides bright, large-scale projection for live events, keynote sessions, and immersive audience experiences. | 

 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 
	 



