Optoma Technology 4K400x 4000-Lumen UHD 4K DLP Projector

Overview

The Optoma 4K400X is a fixed-installation projector designed to deliver bright and detailed images with 4000 lumens of brightness and native 4K UHD resolution (3840 × 2160). It excels in environments where ambient light is present, such as classrooms, conference rooms, and shared learning spaces, ensuring presentations remain clear and easy to read. The projector supports HDR10 and HLG formats, enhancing contrast and color accuracy for videos, graphics, and data.

Key features

• High brightness level that maintains image clarity even in well-lit rooms
• Native 4K resolution combined with HDR10 and HLG support for lifelike visuals
• Two HDMI 2.0 inputs allow seamless switching between multiple devices like laptops and Blu-ray players
• Low input lag of 4.2 ms at 1080p 240 Hz when connected to a capable PC, ideal for interactive applications and fast-paced content
• Four-corner correction enables flexible installation by adjusting the image to fit non-centered or angled projector placement
• USB-A port provides power to HDMI streaming devices, reducing the need for extra adapters and minimizing cable clutter
• Built-in 10 W mono speaker covers everyday audio needs without requiring external sound systems
• Long lamp life of up to 15,000 hours in dynamic mode, lowering maintenance and operating costs

Key specs

• Brightness: 4000 lumens
• Resolution: Native 3840 × 2160 (4K UHD)
• HDR support: HDR10 and HLG
• Input lag: 4.2 ms at 1080p 240 Hz
• HDMI ports: 2 × HDMI 2.0
• USB port: 1 × USB-A (power only)
• Speaker: 10 W mono
• Lamp life: Up to 15,000 hours (dynamic mode)

Connectivity and compatibility

The projector’s dual HDMI 2.0 inputs make it easy to connect multiple sources such as laptops, Blu-ray players, and streaming devices without constantly swapping cables. The USB-A port supplies power to HDMI dongles, which helps keep your setup tidy by eliminating the need for additional power adapters. This setup supports a variety of media and presentation devices commonly used in educational and professional settings.

Installation and setup

Installation is straightforward thanks to the four-corner correction feature, which adjusts the image to appear square even if the projector is placed off-center or at an angle. This flexibility allows mounting on ceilings or high shelves without requiring room redesign. The projector’s fixed-installation design suits both new and existing rooms, making it a practical choice for upgrading audiovisual capabilities.

Ideal uses and environments

The Optoma 4K400X fits well in environments where bright, detailed images are essential despite ambient light, such as classrooms, boardrooms, and media labs. Its fast response time and low input lag also make it suitable for interactive teaching software and sports analysis. Users who need a balance of high resolution, brightness, and flexible installation will find this projector a strong option for their audiovisual needs.