L4 5-Input Multi-Camera Live Production Switcher with 10.1" Touch screen 4x HDMI + 1x SDI Inputs and USB 3.0 Streaming
Procurement managers in the live event and broadcast sector frequently face challenges in securing reliable multi-camera production equipment within tight budgets and compressed delivery schedules. The L4 addresses these requirements by delivering professional-grade 5-input switching capabilities at competitive factory-direct pricing with stable lead times from an established OEM/ODM manufacturer.
Core Features and Business Benefits
Multi-Camera Input Support for Medium to Large Events
The L4 provides 4x HDMI inputs and 1x 3G-SDI input, enabling simultaneous connection of up to 5 signal sources. This configuration supports medium-scale productions using 2–3 cameras plus a PC for PPT playback, as well as large-scale events with 3–5 cameras and PTZ control. T-bar and button controls allow rapid picture switching, reducing setup complexity and operational downtime for summits, cultural shows, and sports events.
Plug-and-Play USB 3.0 Streaming
The built-in USB 3.0 interface functions as a UVC webcam source, allowing direct connection to any computer for live streaming via OBS, or integration with platforms including YouTube, Facebook, Instagram, TikTok, and conference software such as Zoom, Skype, and Tencent Meeting. All input switching occurs in real time, eliminating the need for additional capture cards and simplifying deployment for video creators and corporate presentations.
10.1-Inch LCD Touchscreen with Multi-View Monitoring
The integrated 10.1-inch touchscreen displays all five inputs, PST, and PGM views simultaneously, with intuitive menu navigation that does not obscure preview content. An HDMI PGM output supports connection to external monitors for multi-person monitoring and real-time audio metering. This design enables efficient on-site operation and setup without requiring external preview equipment in most scenarios.
PTZ Control and Advanced Production Tools
For large productions, the L4 integrates with PTZ controllers to manage camera positioning. Additional tools include chroma key with precise edge and flare controls (selectable via on-screen color sampling), logo overlay for branding (via dedicated APP upload, max 256×128 pixels), picture-in-picture (5 selectable modes with quick swap), and 13 broadcast-quality transition effects adjustable from 0.5 to 5 seconds.
Audio Management and Reliable Operation
The unit supports 2-channel audio mixing with a 3.5mm stereo input for microphones and real-time on-screen audio status display. A 3.5mm audio output enables headphone or speaker monitoring. An all-aluminum housing combined with a built-in automatic cooler ensures durability and thermal stability during extended live streaming sessions.
Flexible Output Options
HDMI and SDI program outputs deliver clean feeds for monitoring or recording, with HDMI supporting resolution settings up to 1080p@60. The SDI output provides an independent professional signal path suitable for broadcast workflows.
Technical Specifications
|
Parameter |
Specification |
|
Video Inputs |
4 × HDMI (1.4), 1 × 3G-SDI (BNC) |
|
Video Outputs |
1 × HDMI (1.4), 1 × 3G-SDI (BNC), 1 × USB 3.0 (UVC) |
|
Input Resolutions (HDMI) |
Up to UHD 4K@30fps; 1080p@60fps; 1080i@60fps; 720p@60fps |
|
Processing / Output Resolution |
Up to 1080p@60fps |
|
Touchscreen |
10.1-inch LCD, multi-view (5 inputs + PST + PGM) |
|
Transitions |
13 broadcast-quality effects, 0.5–5s duration |
|
Picture-in-Picture |
5 modes, any input over PGM with quick swap |
|
Chroma Key |
Yes, with edge/flare control |
|
Logo Overlay |
Yes, via APP (256×128 pixels max, 1 image) |
|
Audio |
3.5mm stereo input (MIC), 3.5mm output, 2-channel mixing |
|
Control Interfaces |
Touchscreen, T-bar, buttons, PTZ support, APP (Feelworld Live Plus) |
|
Power & Cooling |
Built-in automatic cooler, aluminum housing |
|
Dimensions & Build |
Slim, lightweight all-aluminum construction |
|
Streaming Compatibility |
OBS, Zoom, Skype, YouTube, Facebook, TikTok, etc. |
OEM/ODM Manufacturing Capabilities
As a dedicated HDMI video production equipment manufacturer, we maintain full in-house control over design, component sourcing, assembly, and quality assurance. Our production lines support flexible OEM/ODM customization, including firmware adjustments, branding, packaging, and minor hardware modifications to meet specific project requirements. Rigorous testing protocols cover signal integrity, thermal performance, and long-duration stability, ensuring consistent batch quality.
Frequently Asked Questions
Q: What is the maximum input resolution supported by the L4?
A: HDMI inputs accept up to UHD 4K@30fps, while SDI supports 1080p@60fps. Program output is processed at up to 1080p@60fps across all paths.
Q: Can the L4 be used for direct live streaming without a computer?
A: No. The USB 3.0 port requires connection to a computer running streaming software (e.g., OBS) to encode and transmit to platforms. The unit handles switching and preview internally.
Q: Does the L4 support external PTZ camera control?
A: Yes. It integrates with standard PTZ controllers for multi-camera positioning during large productions.
Q: How is chroma key implemented on the L4?
A: Select body and background layers from input sources, then sample the key color directly on the touchscreen. Edge and flare parameters provide fine adjustment for clean results.
Q: What audio mixing capabilities does the unit offer?
A: Two-channel mixing is supported, allowing selection from any of the five input audio sources plus the external 3.5mm MIC input. Real-time audio metering is displayed on the touchscreen.
Q: Is the L4 suitable for integration into existing broadcast workflows?
A: Yes. The combination of 3G-SDI input/output, HDMI monitoring, and professional transition effects makes it compatible with both entry-level and mid-tier broadcast environments.
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