Projector VIEWSONIC LSD400HD-ST 4000 ANSI lumens DLP 1080p laser, fixed 7.51 mm, manual focus/zoom, white

ViewSonic LSD400HD-ST is a lamp-free short-throw DLP projector that delivers 4,000 ANSI lumens of brightness and native 1080p (1920x1080) resolution. Using 3rd-generation laser phosphor technology, it provides long operating life — up to 30,000 hours in economy mode — and stable color performance without lamp replacement. The optical design includes a fixed 7.51 mm focal length with manual focus and manual zoom, a 0.5 short-throw ratio that produces a 100" image from approximately 1.1 m, and support for input signals up to 3840x2160. The compact white chassis and sealed DLP engine offer flexible installation for classrooms, meeting rooms, retail displays, exhibitions, and golf simulator setups.

Advantages

The laser light source offers instant on/off, reduced maintenance and energy savings compared with lamp-based projectors, with up to 49% lower power consumption versus competing lamp projectors. DLP technology and a 0.65" DMD chip deliver high native contrast for deeper blacks and sharper detail, while the sealed, filter-free engine minimises dust ingress and long-term image degradation. Installation features such as horizontal/vertical keystone, 4-corner correction and 360° projection expand placement options. Built-in connectivity including full-size HDMI and Ethernet plus RS-232 control enable reliable multimedia playback and centralized device management.

Suitable for

• Classrooms and lecture halls
• Corporate meeting rooms and conference spaces
• Retail displays and product exhibitions
• Golf simulators and immersive training environments
• Small to medium-sized event venues and signage

Key specifications

• Projection technology: DLP with 0.65" DMD chip
• Native resolution: 1080p (1920x1080)
• Brightness: 4000 ANSI lumens
• Light source: 3rd-generation laser phosphor, up to 30,000 hours (economy mode)
• Throw ratio: short throw (0.5), 100" image from ~1.1 m
• Focal length and focus: fixed 7.51 mm, manual focus and manual zoom
• Contrast and colours: high native contrast, up to 1.07 billion colours
• Screen size compatibility: 40"–300" (approx. 1016–7620 mm)
• Installation features: H/V keystone, 4-corner correction, 360° projection
• Connectivity: full-size HDMI, Ethernet LAN, RS-232 control
• Audio: built-in 15 W speaker(s)
• Power consumption: typical AC 143 W
• Weight and colour: approx. 3.1 kg, white chassis

How to use

Place the projector on a stable surface or mount according to the required image size and throw distance, keeping the lens unobstructed. Connect your source via HDMI or Ethernet and power on; the laser light source provides near-instant start-up. Use manual focus and zoom to achieve a sharp image, then apply horizontal/vertical keystone and 4-corner correction for accurate geometry. For networked control or centralized management, integrate the projector with Crestron, AMX, PJ Link or other supported control systems via LAN or RS-232. Adjust volume through the built-in speaker or connect external audio if greater output is needed.

Usage recommendations

For best long-term performance, operate the projector in standard or economy modes depending on ambient light and required brightness. Ensure adequate ventilation around the unit and avoid blocking the lens or vents. Use the short-throw placement to achieve large images in constrained spaces and enable keystone/corner corrections to eliminate image distortion. When deploying in public or high-dust environments, rely on the sealed DLP engine and verify network control settings for remote management and scheduled power cycles.