Huidu HD-A4L LED Sending Box – LAN & Cloud Publishing Controller, 650K Pixel Capacity | For Commercial LED Displays
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Huidu HD-A4L LED Sending Box – LAN & Cloud Publishing Asynchronous Controller with 650K Pixel Capacity for Commercial LED Displays
The Huidu HD-A4L LED sending box is an advanced asynchronous LED controller designed for commercial LED displays requiring remote publishing and stable network control.
Supporting LAN connectivity and cloud-based content management, it offers a flexible control solution for digital signage, advertising screens, and information LED display systems with up to 650,000 pixels.
Packing Details
| Version | Package Included |
| HD-A4L | 1 × HD-A4L Controller 1 × Power Cable 1 × User Manual |
About this item
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Supports up to 650,000 pixels, suitable for small and medium commercial LED display screens
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LAN-based asynchronous control system enables reliable program transmission without a dedicated PC connection
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Supports cloud publishing and remote content management, ideal for distributed LED display networks
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Compatible with Huidu LED control software and mobile management platforms
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Enables flexible content scheduling including text, images, animations, and video playback
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Compact sending box design allows easy installation inside LED display cabinets or control enclosures
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Stable signal architecture ensures smooth playback for advertising and information displays
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Designed for retail digital signage, storefront LED screens, and commercial advertising displays
Quick Specs
| Specification | Detail |
|---|---|
| Product Type | LED Sending Box |
| Model | Huidu HD-A4L |
| Control Type | Asynchronous LED Controller |
| Max Pixel Capacity | 650,000 Pixels |
| Communication | LAN / Network |
| Content Management | Cloud Publishing Supported |
| Supported Content | Text, Images, Animations, Video |
| Control Software | Huidu LED Control System |
| Application | Commercial LED Displays |
| Power Supply | DC Power Adapter |
Installation & Maintenance Tips
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Install the sending box inside a protected control cabinet or equipment enclosure
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Connect the controller to receiving cards through stable Ethernet cables
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Configure screen parameters in Huidu control software before uploading display content
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Use reliable network infrastructure to ensure smooth remote content publishing
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Maintain proper ventilation in the controller area for long-term stable operation
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Organize signal and power wiring to simplify maintenance and troubleshooting
Shipping Information
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Lead Time: In-stock products ship within 1–3 business days
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Packaging: Anti-static protection with reinforced outer carton to ensure safe transportation
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Shipping Origin: Shipped directly from warehouse
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Standard Shipping: 9–18 days
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Express Shipping: 5–9 days
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Shipping Costs: Calculated at checkout based on destination and order quantity
Full Specifications
| Specification | Detail |
|---|---|
| Brand | Huidu |
| Model | HD-A4L |
| Product Category | LED Sending Box |
| Control Mode | Asynchronous Control |
| Max Pixel Capacity | 650,000 Pixels |
| Communication Interface | LAN / Ethernet |
| Cloud Publishing | Supported |
| Supported Content Formats | Text, Image, Animation, Video |
| Control Software | Huidu LED Control Software |
| Network Interface | Ethernet |
| Storage | Built-in storage for display programs |
| Power Supply | DC Power Adapter |
| Operating Temperature | −20 °C to 60 °C |
| Operating Humidity | 10%–90% RH |
| Installation Method | Control cabinet mounting |
| Application Environment | Indoor LED display systems |
Applications
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Retail LED advertising displays
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Storefront digital signage LED screens
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Restaurant menu LED display boards
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Commercial advertising LED screens
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Transportation information LED displays
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Corporate information LED display systems