Optoma ZK400

Overview

The Optoma ZK400 is a 4K UHD laser DLP projector designed to deliver bright and detailed images with 4000 lumens of brightness and a native resolution of 3840 × 2160 pixels. It is ideal for environments such as conference rooms, classrooms, sports bars, and public venues where clear visuals are needed even in well-lit conditions. The DuraCore laser engine offers up to 30,000 hours of operation, minimizing maintenance and ensuring long-term reliability.

Key features

• Laser light source rated for 30,000 hours, reducing the need for lamp replacements and maintenance
• High brightness of 4000 lumens combined with a 2,000,000:1 contrast ratio for sharp images in ambient light
• Support for HDR10 and HLG formats enhances color depth and dynamic range for more lifelike visuals
• Flexible installation with a 1.5 to 1.66:1 throw ratio, manual 1.1x zoom, and keystone correction up to ±30° on both axes
• Four-corner adjustment and 360-degree orientation including portrait mode for versatile mounting options
• Three HDMI 2.0 ports allow connection to multiple 4K sources such as media players and gaming consoles
• Low 4 ms input lag supports smooth and responsive fast-action video and gaming
• Built-in 20 W stereo speakers provide clear audio, with additional audio outputs for external sound systems
• Designed for continuous 24/7 operation, making it suitable for demanding environments like museums and control rooms

Key specs

• Resolution: 3840 × 2160 (4K UHD)
• Brightness: 4000 lumens
• Contrast ratio: 2,000,000:1
• Light source: DuraCore laser
• Light source life: up to 30,000 hours
• Throw ratio: 1.5 to 1.66:1
• Zoom: manual 1.1x
• Keystone correction: ±30° horizontal and vertical
• Input lag: 4 ms
• Audio output: integrated 20 W stereo speakers plus external audio out
• Connectivity: three HDMI 2.0 ports, USB-A power port

Connectivity and compatibility

The projector offers multiple HDMI 2.0 inputs to connect a variety of 4K-capable devices such as streaming players, gaming consoles, and laptops. The USB-A port can power wireless adapters or other accessories, while audio outputs allow integration with external sound systems for enhanced audio performance. This range of connections ensures compatibility with most modern AV setups.

Installation and setup

Installation is straightforward thanks to the flexible throw ratio and manual zoom, which allow you to position the projector in a variety of spaces. Keystone correction and four-corner adjustment help align the image perfectly on uneven surfaces. The ability to mount the projector in 360-degree orientation and portrait mode expands its use for digital signage and creative display setups.

Ideal uses and environments

The Optoma ZK400 is well suited to professional and public settings that require bright, high-resolution images with minimal downtime. It performs reliably in conference rooms, classrooms, retail displays, museums, and control rooms. Its long-lasting laser light source and robust design make it a strong choice for continuous operation where consistent image quality and low maintenance are priorities.

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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