HD-B6L control for LED poster and splicing screens
The Huidu B6L combines HDMI live-signal playback with stored multimedia programs for mobile poster, mirror and splicing displays. HDMI input and output are standard. Use a single poster independently or link multiple B6L units for an HDMI splicing installation.
Playback supports video, images, GIF animations, text, WPS documents, tables, clocks and timed content. Synchronous, asynchronous and mixed playback are supported, including synchronous/asynchronous picture-in-picture and automatic scaling of synchronous images.
B6L technical specifications
| Parameter | Specification |
|---|---|
| Single-controller capacity | 1.3 million pixels (130W pixels in the specification) |
| Cascaded splicing capacity | 2.6 million pixels across multiple B6L units (260W in the specification) |
| Separate dimension limits | Maximum width 16,384 pixels or maximum height 4096 pixels |
| Receiving-card outputs | 2 × Gigabit Ethernet |
| HDMI | 1 input; 1 output for cascade splicing |
| HDMI cascade depth | Up to 10 levels |
| Communication input | 1 × Gigabit Ethernet |
| USB | 1 interface for program updates/playback and expansion |
| Sensor inputs | 2 dedicated interfaces for environmental sensors or GPS |
| Audio outputs | 1 × TRS 3.5 mm and 1 × 4-pin two-channel output |
| Wi-Fi | Standard 2.4 GHz; AP and STA modes |
| Relay | 1 onboard relay for remote power control |
| 4G | Optional; supports XiaoHui Cloud access |
The width and height limits are independent and remain subject to the controller’s total pixel capacity. A 10-level HDMI cascade does not imply ten times the stated splicing capacity.
Multi-window playback and remote updates
The listed playback configurations are up to two 4K windows, or six 1080p windows, or ten 720p windows, or twenty 360p windows. These are alternative configurations, not simultaneous totals.
LedArt provides wireless mobile control. USB can update or play programs, while Internet connectivity supports remote display management and power control. In a cascade, the main screen can synchronize receiving-card basic parameters, connection relationships and brightness parameters to secondary screens.
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Download specification
HD-B6L LED poster controller specification PDF
Frequently Asked Questions
Can B6L play HDMI and stored content together?
Yes. It supports synchronous, asynchronous and mixed playback, with synchronous/asynchronous picture-in-picture.
How many LED output ports does HD-B6L have?
It has two Gigabit output ports for connection to receiving cards, plus an HDMI output for cascade splicing.
How many B6L units can be cascaded through HDMI?
The specification supports up to 10 HDMI cascade levels. The stated multi-unit splicing capacity is 2.6 million pixels.
How many video windows can B6L play?
The listed alternatives are two 4K, six 1080p, ten 720p or twenty 360p video windows.
Does B6L support wireless and cloud control?
Standard 2.4 GHz Wi-Fi supports LedArt control in AP or STA mode. Optional 4G supports XiaoHui Cloud Internet management.






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