Optoma 4K400X

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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