Colorlight S4 HD LED Display Controller
The Colorlight S4 sends HDMI or DVI video to an LED display through four Gigabit Ethernet outputs. The V2.3 version provides separate HDMI and DVI inputs plus an HDMI loop output, with a maximum input resolution of 1920 × 1200 and a total LED loading capacity of 2.3 million pixels.
Screen setup and everyday control
Dual USB 2.0 interfaces connect the controller to a PC for configuration and allow multiple units to be cascaded. The four Ethernet outputs support screen splicing. Brightness and chromaticity adjustment, improved grayscale at low brightness and HDCP support help manage the displayed image.
The front panel displays the brightness value and provides 16-level whole-screen brightness adjustment and screen test modes. Audio input can send audio to a multifunction card. The specification lists compatibility with Colorlight receiving-card series; confirm the receiving-card and screen configuration for your installation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Video inputs | 1 × HDMI; 1 × DVI |
| Video loop output | 1 × HDMI LOOP |
| Maximum input resolution | 1920 × 1200 pixels |
| Video source frame rate | 60 Hz; automatic adjustment supported |
| LED loading capacity | Up to 2.3 million pixels |
| Maximum screen dimensions | 4096 pixels wide or 2560 pixels high, within the total loading capacity |
| LED outputs | 4 × Gigabit Ethernet |
| Recommended cable distance | CAT5: ≤100 m |
| USB connections | USB_IN for PC configuration; USB_OUT for cascading |
| Front-panel brightness adjustment | 16 levels |
| Chassis | 1U |
| Input power | AC 100–240 V, 50/60 Hz |
| Rated power consumption | 20 W |
| Weight | 2 kg |
Product Images


Frequently Asked Questions
Does the Colorlight S4 have an HDMI input?
Yes. The V2.3 version has one HDMI input, one DVI input and one HDMI loop output.
How many pixels can the S4 control?
The total loading capacity is up to 2.3 million pixels. Maximum width is 4096 pixels or maximum height is 2560 pixels, subject to that total capacity. The input resolution limit is separately specified as 1920 × 1200.
How many Ethernet outputs does the S4 have?
It has four Gigabit Ethernet output ports for connection to LED receiving cards and screen splicing.
Can I cascade multiple S4 controllers?
Yes. USB_IN connects to a PC for configuration and USB_OUT supports cascading to another controller.
Can the S4 adjust brightness without a PC?
Yes. Its front-panel buttons provide 16-level whole-screen brightness adjustment and access to screen test modes. The indicator panel displays the brightness value.








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