Colorlight X20 Manual & Full Setup Guide (2026)

Quick answer: The Colorlight X20 is a 4K LED video processor (LED display controller) with 1× HDMI 2.0, 1× DP 1.2, 2× HDMI 1.4 and 2× DVI inputs, 20× Gigabit Ethernet outputs plus 2× 10G fiber ports, and a maximum load of 13 million pixels (up to 16,384 px wide and 8,192 px high). It is configured with Colorlight iSet and updated with LEDUpgrade. The X20 user manual, the X20 specification and the X20 firmware package are hosted on this page.

The Colorlight X20 is built for jobs where a wall has to be driven from several high-resolution sources at once — rental stages, broadcast studios, exhibitions, control rooms and large fixed LED screens. It takes 4K inputs, splits and scales them into up to six windows, and pushes the result to the receiving cards over 20 Gigabit Ethernet ports or 2 × 10G fiber.

This guide covers the three things X20 users actually need: the manual, specification and firmware downloads, the verified technical data, and the step-by-step setup process in iSet — followed by troubleshooting for the faults that stop a screen from displaying.

Colorlight X20 LED display controller and 4K video processor — The Colorlight X20: a 20-port 4K LED video processor with optional 10G fiber output.

What this Colorlight X20 guide covers

Colorlight X20 at a glance
Colorlight X20 technical specifications
X20 manual, specification and firmware downloads
Before you start: five checks
X20 setup steps in Colorlight iSet
How to check the 13-million-pixel load limit
Troubleshooting the Colorlight X20
Colorlight X20 vs VX20
Colorlight X20 FAQ

1. Colorlight X20 at a glance

Item	Detail
Product type	4K LED video processor / LED display controller
Inputs	1× HDMI 2.0, 1× DP 1.2, 2× HDMI 1.4, 2× DVI
Outputs	20× Gigabit Ethernet; 2× 10G fiber (SFP+ modules optional)
Maximum load	13 million pixels
Maximum canvas	16,384 px wide × 8,192 px high
Windows	Up to 6 windows, freely positioned and scaled; minimum window 64 × 64 px
Audio	Independent audio in/out; embedded HDMI and DP audio can be separated
Control	LAN (TCP/IP); third-party control over TCP/UDP/RS-232
Software	Colorlight iSet for screen setup; Colorlight LEDUpgrade for firmware
Typical use	Rental stages, broadcast, exhibitions, control rooms, large indoor and outdoor walls
Documents on this page	X20 user manual V2.0, X20 specification, X20 firmware (PCB1.1 V2.40)

2. Colorlight X20 technical specifications

The table below lists the published X20 data. If a feature depends on the receiving card (for example a special display mode), the receiving card must support it as well.

Category	Specification
Input connectors	1× HDMI 2.0, 1× DP 1.2, 2× HDMI 1.4, 2× DVI
Input resolution	Up to 4096 × 2160 @ 60 Hz
Loading capacity	13,000,000 pixels
Maximum width	16,384 pixels
Maximum height	8,192 pixels
Output connectors	20× Gigabit Ethernet (RJ45)
Optical output	2× 10G fiber ports (optical modules optional)
Output limitation	Ethernet port output and optical port output cannot be used at the same time
Windows / layers	Up to 6 windows with free position and size; minimum window size 64 × 64 px
Video processing	Seamless source switching, cropping, splicing and broadcast-grade scaling
Audio	Independent audio input and output; HDMI/DP embedded audio can be separated
Control interfaces	LAN (TCP/IP); third-party control over TCP/UDP/RS-232
Cabling guidance	Use standard Gigabit Ethernet cabling to the receiving cards (≈100 m maximum per copper run); use the 10G fiber ports for longer distances

Figures above follow the Colorlight X20 specification. Product batches and firmware can change; always confirm the model and revision printed on your unit before ordering spares.

Colorlight X20 technical specifications table showing inputs, outputs and loading capacity — X20 specification summary: 4K inputs, 20 Gigabit Ethernet outputs, 13 million pixels of loading capacity.

3. X20 manual, specification and firmware downloads

Download the documents you need before you start. The manual is the reference for menu items and connection diagrams; the specification is the reference for the numbers in this article.

File	Version hosted here	What it is for
Colorlight X20 user manual (PDF)	V2.0	Front and rear panel layout, menus, connection examples and configuration steps
Colorlight X20 specification (PDF)	X20 specification	Inputs, outputs, loading capacity and supported features
Colorlight X20 firmware (ZIP)	PCB1.1 V2.40 (main ARM 51.92 / FPGA 11.92 / FPGA2 1.20 / front ARM 52.22 / output board 1.60)	Firmware upgrade package for the X20
Colorlight software: iSet and LEDUpgrade	Current versions listed on the download page	iSet for screen setup and control, LEDUpgrade for firmware installation

Version note: Colorlight’s own download centre also lists a newer PCB1.1 V2.60 package for the LAN version of the X20. Check the PCB revision and the current firmware on your processor (status screen) before upgrading, and keep the version that matches your approved project or service record.

4. Before you start: five checks

Screen size in pixels. Multiply the cabinet resolution by the number of cabinets in each direction. The result must fit the X20’s 13 million pixel budget.
Receiving card model. Note the card type and how many pixels each card handles, so the port plan in iSet matches the hardware.
Cable plan. Count how many cabinets sit on each output. Keep copper runs inside the Gigabit Ethernet limit and use the 10G fiber ports when the distance or cable count grows.
Sources and resolutions. List every source and its resolution and frame rate (for example 3840 × 2160 @ 60 Hz) and decide which input each one uses.
Firmware and software versions. Record the firmware on the processor and install the current iSet version so screens and parameter files stay compatible.

5. X20 setup steps in Colorlight iSet

The sequence below follows the way the X20 is normally commissioned: connect the video chain, bring the processor onto the network, build the screen in software, then add windows and audio.

Step 1 – Download the manual, specification and firmware

Download the files from the download table above. Install iSet and LEDUpgrade from the Colorlight software download page rather than from an unknown mirror, and keep the firmware version that matches your processor revision.

Step 2 – Connect the video inputs

Match each source to the right input. A practical mapping for the X20’s four input types:

Source	Use this input	Notes
4K / UHD player or PC	HDMI 2.0 or DP 1.2	Up to 4096 × 2160 @ 60 Hz
1080p / 2K playback	HDMI 1.4 or DVI	Keep HDMI 2.0 and DP free for the 4K sources
Camera or switcher output	HDMI 2.0 or HDMI 1.4	Match the frame rate to the on-camera refresh you use for the wall
Audio feed	Independent audio in, or embedded HDMI/DP audio	The X20 can separate embedded audio and output it independently

Colorlight X20 4K input ports including HDMI 2.0, DP 1.2, HDMI 1.4 and DVI — Connect 4K sources to the HDMI 2.0 and DP 1.2 inputs and keep the HDMI 1.4 / DVI inputs for 2K sources.

Step 3 – Connect the outputs to the receiving cards

Copper: run CAT5e or better from the X20’s 20 Gigabit Ethernet ports to the first receiving card in each chain.
Fiber: use the 2 × 10G fiber ports for long spans or high port counts.
Important: Ethernet output and optical output cannot be used at the same time — decide which path the wall uses before wiring, because the two paths share the same output capacity.

Colorlight X20 output ports with 20 Gigabit Ethernet ports and 2 by 10G fiber ports — The X20 offers 20 Gigabit Ethernet outputs and 2 × 10G fiber ports — but only one output path can be active at a time.

Step 4 – Install iSet and find the processor on the network

Install iSet, connect the processor to the same network as the control PC, and give the PC an IP address in the same subnet as the X20. If the device does not appear in the list, test with a direct cable and check that no other device is using the same address.

Step 5 – Create the screen and enter the parameters

Add a new screen, then enter the parameters that describe the physical wall: resolution, receiving card type, cabinet size and the number of cabinets per port. This step is what stops the wall from showing a scaled or scrambled image.

Step 6 – Map inputs and build the windows

The X20 can display up to six windows at the same time, each with its own position and size (minimum 64 × 64 px). Place the windows you need, then use cropping and scaling to fit the source content exactly on the wall.

Step 7 – Set up audio

Choose the audio source you want — the independent audio input or the embedded audio from the HDMI or DP signal — and set the output level for your speaker system.

Colorlight X20 audio input and output connectors for embedded and independent audio — The X20 can output HDMI/DP embedded audio or independent audio to the sound system.

Step 8 – Upgrade the firmware with LEDUpgrade

If the project needs a newer firmware, run LEDUpgrade on a stable connection and select the package that matches your processor. Do not interrupt the update, and keep the previous parameter files so you can restore a known-good state.

Step 9 – Test and fine-tune

Feed a test pattern, check every cabinet for correct port mapping, then set brightness and colour temperature for the room. Confirm the total pixel count is still inside the 13 million limit before you finalise the layout.

6. How to check the 13-million-pixel load limit

Loading capacity is about the total number of pixels in the canvas the X20 drives, not the resolution of the input video. Multiply width by height, then compare with 13,000,000:

Canvas size	Pixels	Fits the X20?
1920 × 1080	2.07 million	Yes
3840 × 2160 (UHD)	8.29 million	Yes
5120 × 2880	14.75 million	No — reduce the canvas or split the wall
16384 × 512 (wide strip)	8.39 million	Yes — inside the 16,384 px width limit
512 × 8192 (tall strip)	4.19 million	Yes — inside the 8,192 px height limit

The 16,384 × 8,192 figures are the maximum width and maximum height of the canvas — not a canvas you can fill at once. The total is still capped at 13 million pixels.

7. Troubleshooting the Colorlight X20

Most X20 faults come from four things: the input signal, the port mapping, the network settings, or firmware that does not match the hardware. Work through the table in order.

Symptom	Likely cause	What to do
No image on the wall	Input not selected, EDID/signal mismatch, or a bad cable	Check the source resolution and frame rate, test the cable and source on a known-good input, then confirm the input is assigned to a window
Menus show on the processor but the wall stays black	Output ports not mapped to the screen, or the receiving cards are not in the chain	Re-check the port-to-cabinet mapping in iSet and test the Ethernet chain port by port
Image flickers or rolls	Refresh rate not matched to the source or camera	Adjust the output refresh and scan settings until the wall stops beating against the camera
Colour differences between cabinets	Wrong cabinet parameter or calibration data	Re-upload the cabinet parameter and calibration file for the affected cabinets so every cabinet uses the same data
The wall is cut off at the edges	Canvas exceeds the maximum width, height or total pixel budget	Reduce the canvas, or split the wall across processors so each one stays inside 13 million pixels
Fiber output does not work while the Ethernet ports are connected	Ethernet and optical output cannot run at the same time	Choose one output path and disconnect the other
Cannot connect to the X20 from the PC	IP addresses on different subnets, an IP conflict, or a firewall	Put the PC and processor on the same subnet, remove conflicts, and test with a direct cable
Firmware update fails	Package does not match the model or PCB revision, or the connection dropped	Confirm the exact model and revision, use the matching firmware package, and repeat the update on a stable connection

8. Colorlight X20 vs VX20

The VX20 is the newer professional processor in the same family. Both share the 16,384 × 8,192 canvas, so the choice usually comes down to input types, optical capacity and redundancy.

Aspect	Colorlight X20	Colorlight VX20
Inputs	1× HDMI 2.0, 1× DP 1.2, 2× HDMI 1.4, 2× DVI	2× HDMI 2.0, 2× DP 1.2, 4× HDMI 1.4, 2× 12G-SDI
Ethernet outputs	20× Gigabit Ethernet	20× Gigabit Ethernet
Fiber outputs	2× 10G fiber	4× 10G fiber (2 primary, 2 backup/copy)
Maximum load	13 million pixels	13.1 million pixels
Maximum canvas	16,384 × 8,192	16,384 × 8,192
Work modes	Not documented in the X20 specification	Video processor, fiber optic transceiver, bypass
Redundancy	Not documented in the X20 specification	Fiber and Ethernet loop redundancy, processor redundancy
Presets	Not documented in the X20 specification	Up to 1,000 presets plus preset loop
Control	iSet, LAN (TCP/IP), TCP/UDP/RS-232	iSet, front touch panel, cross-platform web app
Best for	Cost-effective 20-port 4K processing and sending	Redundant shows, SDI workflows and long fiber runs

Read the full features, specifications and application notes for the newer model in our Colorlight VX20 video controller guide, or check the model against the other processors we cover in the LED control system section, including the NovaStar MCTRL4K and the NovaStar MX2000 Pro.

Note on the name: Colorlight lists an X20m as a separate model in the same family. If you searched for “Colorlight X20m”, check the model printed on the rear panel of your processor — the data on this page describes the X20.

Colorlight X20 video processor driving an LED wall at a live concert — The X20 is commonly used for concerts and live events, where several 4K sources have to reach one large wall.

9. Colorlight X20 FAQ

Where can I download the Colorlight X20 user manual?

The X20 user manual (V2.0) is a PDF hosted on this site — use the download table above. It covers the front and rear panel, the menus, connection examples and the configuration steps.

What software does the Colorlight X20 use?

The X20 is configured with Colorlight iSet, and its firmware is installed with Colorlight LEDUpgrade. Both are listed on our Colorlight software download page, with the platforms and versions available for each tool.

How many pixels can the Colorlight X20 load?

Up to 13 million pixels, with a maximum canvas width of 16,384 px and a maximum height of 8,192 px. A 3840 × 2160 UHD canvas (8.29 million pixels) fits comfortably; a 5120 × 2880 canvas does not.

Can I use the 20 Ethernet ports and the fiber ports at the same time?

No. Ethernet port output and optical port output cannot be used at the same time on the X20, so plan the wall around one output path.

How many windows can the X20 display?

Up to six windows, each with independent position and size, down to a minimum window size of 64 × 64 pixels. Windows can be cropped and scaled to fit the wall.

Does the X20 support audio?

Yes. The X20 has independent audio input and output and can separate (de-embed) the audio carried inside the HDMI and DP signals.

What is the difference between the Colorlight X20 and VX20?

The VX20 adds 2 × 12G-SDI inputs, up to 4 × 10G fiber ports, redundant output paths, more presets and web-app control. The X20 keeps the 20-port Gigabit Ethernet design with 4K HDMI/DP inputs at a lower cost.

How much does the Colorlight X20 cost?

Colorlight does not publish a list price, and supplier quotes vary by region, configuration, warranty and whether optical modules or a flight case are included. Ask for a written quote that lists the processor revision, optical modules and warranty so you can compare offers properly — you can send us your project details for a current price.

10. Summary

The Colorlight X20 remains a practical 20-port 4K processor: 1× HDMI 2.0, 1× DP 1.2, 2× HDMI 1.4 and 2× DVI inputs, 20 Gigabit Ethernet outputs, 2 × 10G fiber, six windows and 13 million pixels of loading capacity. Download the manual and firmware from the table above, install iSet, build the screen before you build the windows, and keep the total canvas inside the load limit.

Specification figures on this page follow the Colorlight X20 specification and the X20 user manual hosted on this site. Screen projects also depend on the receiving cards, power and mechanical design — see our LED screen buying guide when you plan a new wall.