
The Huidu A6L LED display controller redefines versatility and performance for modern visual solutions. Designed to meet the demands of commercial advertising, smart displays, and large-scale installations, this compact yet powerful device bridges the gap between high-resolution content delivery and seamless control.
1. Key Features of Huidu A6L
The Huidu A6L isn’t just another LED controller—it’s a powerhouse of innovation tailored for demanding display environments.
1.1 Massive Pixel Control & Ultra-Wide Flexibility
Maximum Loading Capacity: Drive LED displays with 2.62 million pixels, perfect for large-scale billboards or intricate video walls.
Extreme Resolution Support:
Width: Up to 65,536 pixels (ideal for panoramic displays in stadiums or airports).
Height: Up to 4,096 pixels (suits towering vertical screens in malls or stage backdrops).
Adaptive Scaling: Automatically adjusts content to fit any screen ratio without distortion.

1.2 Multi-Channel Playback for Dynamic Content
Superior Decoding Power:
Play 2-channel 4K@60fps videos for cinema-quality visuals.
Run 6-channel 1080P, 10-channel 720P, or 20-channel 360P content simultaneously—ideal for live broadcasts or multi-zone advertising.
PIP/POP Support: Enable Picture-in-Picture or Picture-outside-Picture modes to overlay live feeds, logos, or real-time data on primary content.
1.3 Wireless Control & Mobile Integration

Dual-Band Wi-Fi: Leverage both 2.4GHz (long-range) and 5GHz (high-speed) frequencies for stable connectivity.
Mobile App Control: Use the LedArt app (Android/iOS) to:
Update playlists remotely.
Adjust brightness/volume based on time or ambient sensors.
Monitor device status in real time.
Wireless Screen Mirroring: Cast content from phones or laptops via Miracast (Windows/Android) or AirPlay (iOS).
1.4 Seamless HDMI Synchronization & Splicing
Real-Time HDMI Playback: Sync with external HDMI sources (cameras, PCs) for live events or news tickers.
One-Click Mode Switching: Toggle between synchronous (live input) and asynchronous (stored content) modes instantly.
HDMI Splicing: Chain multiple screens using HDMI LOOP ports to create seamless video walls—no additional hardware needed.
1.5 USB Plug-and-Play Simplicity
Direct USB Playback: Insert a FAT32-formatted USB drive to auto-play videos, images, or GIFs without software setup.
Offline Reliability: Ideal for locations with limited internet access (e.g., remote signage or trade show booths).

1.6 Remote Management & 4G/5G Connectivity

Cloud Cluster Control: Manage multiple A6L units globally via Huidu XiaoHui Cloud Platform (requires optional 4G/5G module).
Multi-Network Support: Connect via Ethernet, Wi-Fi, or cellular networks for failproof operation.
1.7 Rich Interface Ecosystem
Sensor Integration: Connect environmental sensors (PM2.5, temperature, humidity) to display real-time data.
Audio/Video Ports:
- HDMI IN/LOOP/OUT: For flexible signal routing.
- 3.5mm Audio Out: Sync sound with visuals.
- USB 3.0/2.0: High-speed file transfers and storage expansion.
Industrial Durability: Operates in extreme temperatures (-40°C to 70°C) for outdoor or harsh environments.
2. Technical Specifications


Features | Category | Specifications |
Display & Resolution | Maximum Pixel Capacity | 2.62 million pixels |
Maximum Supported Width | 65,536 pixels (ultra-wide displays for stadiums, billboards) | |
Maximum Supported Height | 4,096 pixels (vertical screens for elevators, stage backdrops) | |
Aspect Ratio Adaptation | Auto-scaling to fit any screen ratio without distortion | |
Video Decoding & Playback | Video Decoding | H.265/HEVC, VP9, MPEG-4, H.264, MVC, Motion JPEG |
Max Resolution & Frame Rate | 4K@60fps (4096×2304 pixels) | |
Multi-Channel Playback | – 2-channel 4K – 6-channel 1080P – 10-channel 720P – 20-channel 360P | |
PIP/POP Support | Overlay live feeds, logos, or data on primary content | |
Connectivity & Ports | HDMI Interfaces | – HDMI IN (1.4 standard) – HDMI LOOP (splicing/cascading) – HDMI OUT |
Network Options | – Gigabit Ethernet (LAN) – Dual-band Wi-Fi (2.4GHz/5GHz) – Optional 4G/5G | |
USB Support | – USB 3.0 (high-speed transfers) – USB 2.0 (backward compatibility) | |
Sensor Integration | 2x sensor ports (PM2.5, temperature, humidity, noise) | |
Power & Durability | Input Voltage | DC 5V-12V |
Power Consumption | Max 18W | |
Operating Temperature | -40°C to 70°C | |
Protection Rating | IP20 (dust-resistant; avoid direct water exposure) | |
Storage & Memory | RAM | 2GB (for multitasking and smooth decoding) |
Internal Storage | 16GB (stores programs, logs, firmware) | |
Expandable Storage | Supports USB drives up to 2TB (FAT32 format) | |
Audio & Dimensions | Audio Output | 3.5mm TRS jack (two-channel audio) |
Dimensions | 287mm × 140.3mm × 42.3mm (compact design) | |
Weight | 1.004kg (lightweight aluminum casing) | |
Software & Compatibility | Operating System | Android 11 |
Supported Formats | – Video: MP4, MKV, MOV, AVI, TS, FLV, WEBM – Image: JPEG, PNG, GIF, WEBP (max 8176×8176 pixels) – Documents: WPS, TXT, PDF |
3. Huidu HD A6L Price
Huidu HD A6L standard model starts at around $290.
For region-specific quotes, bulk discounts, or comparisons with similar products (e.g., Novastar, Colorlight), register LedInCloud, our LED Screen Cloud Platform for:
- Instant Quotes: Send your project specs (screen size, modules, sensors) for tailored pricing.
- Side-by-Side Comparisons: Analyze A6L against other controllers in price, performance, features, and TCO (Total Cost of Ownership).
- Expert Support: Chat with engineers for technical advice or custom configurations.

4. Step-by-Step Huidu A6L Setup Guide
Setting up the Huidu A6L is straightforward, whether you’re a first-time user or a seasoned professional. Follow these steps to get your LED display up and running in minutes:
Step 1: Hardware Connections
(1) Power On the Device:
Connect the power adapter (5V-12V) to the DC IN port on the rear panel.
Flip the front panel switch to ON—the PWR light will turn green.
(2) Link to LED Screen:
Use an HDMI cable to connect the HDMI OUT port to your LED display.
For multi-screen setups, chain additional displays via the HDMI LOOP port.
(3) Connect Input Sources (Optional):
Live Content: Plug a PC, camera, or media player into the HDMI IN port.
USB Playback: Insert a FAT32-formatted USB drive into the USB 3.0 port.
(4) Network & Sensors:
Wired Network: Use an Ethernet cable to connect the LAN IN port to your router.
Sensors: Attach environmental probes (e.g., PM2.5) to the SENSOR 1/2 ports.

Step 2: Install HDPlayer Software
(1) Huidu HD Player Software Download:
Visit LedInCloud → Find out HDPlayer→ Download HDPlayer.
(2) Install on PC:
Run the installer → Select your language → Choose default components → Set installation path → Click Install.

(3) Launch HDPlayer:
Open the software → The A6L will auto-detect if connected via LAN/Wi-Fi.

Step 3: Configure Basic Settings
(1) Create a New Screen Profile:
Click New Project → Set parameters:
- Resolution (e.g., 1920×1080).
- Gray Scale (adjust for optimal brightness).
- Rotation (0°, 90°, 180°, or 270°).

(2) Select Playback Mode:
Synchronous Mode: For live HDMI input → Enable Auto-Scaling.
Asynchronous Mode: For preloaded content → Upload files via USB or HDPlayer.

(3) Wi-Fi Setup (Optional):
Go to Wi-Fi Settings → Choose STA Mode → Enter your network SSID/password.
Step 4: Advanced Customization
(1) Automate Brightness:
Navigate to Brightness Setting → Choose Auto Mode → Set sensitivity (e.g., 5000ms detection interval).
(2) Schedule Power On/Off:
Under Switch Machines Setting → Add time slots (e.g., 08:00–22:00).

(3) Multi-Screen Sync:
Enable Multi-Screen Sync in playback settings → Assign group IDs to linked A6L units.
Step 5: Test & Publish Content
(1) Upload Media:
Drag videos, images, or GIFs into HDPlayer → Adjust layout using the preview window.
(2) Send to Device:
Click Send → Choose A6L or USB Drive → Wait for confirmation (✓ = success).
(3) Verify Playback:
Check the LED screen for content → Use the NEXT button on the A6L to cycle programs.

5. Free Resources & Downloads
Unlock the full potential of your Huidu A6L with these essential free resources. Everything you need is just a click away.
6. FAQs about HD A6L
Why won’t my Huidu A6L power on?
Check the power supply: Ensure the adapter is connected to the DC IN port (5V-12V).
Indicator light: If the PWR light is off, try a different power cable or outlet.
Switch position: Confirm the front panel switch is set to ON.
HDMI input isn’t displaying on my LED screen. What’s wrong?
Cable/port issues: Test with a different HDMI cable or port (HDMI IN/LOOP/OUT).
Resolution mismatch: Ensure the input source (e.g., PC) matches the A6L’s supported range (up to 4K@60fps).
Mode settings: Verify the A6L is in Synchronous Mode for live HDMI playback.
My USB drive isn’t recognized. How do I fix this?
Format to FAT32: Use tools like Huidu’s USB Formatter.
Port check: Try the USB 3.0 port for faster transfers.
File compatibility: Ensure content is in supported formats (MP4, JPEG, etc.).
How do I reset the A6L to factory settings?
Physical reset: Use a paperclip to press the Reset pinhole on the rear panel for 5 seconds.
Software reset: In HDPlayer, go to Device Settings → Restore Defaults.
Why is my Wi-Fi connection unstable?
Signal strength: Place the A6L closer to the router or use the 5GHz band for less interference.
Firmware update: Download the latest version from Huidu’s Firmware Hub.
Password check: Re-enter the Wi-Fi password in STA Mode settings.
7. Conclusion
Innovate. Control. Impress.
With the Huidu A6L, the future of LED display management is at your fingertips.