What does "flicker-free" mean and why does it matter?

The 30kHz PWM frequency is far above what cameras would capture as flickering. In video and film recording, this prevents banding artefacts and visible flickering, especially at higher frame rates (slow motion). For the human eye, PWM below approx. 200Hz is often visible – 30kHz is completely safe.

Which LEDs can I connect?

The FX1 nano operates with constant voltage. It is therefore ideal for 5V LED strips and compatible LED modules with built-in series resistors. LEDs that require constant current are not directly compatible.

How do I select an effect?

Via the DIP switch on the board. Activate one of the five pre-installed effects – fine-tune with the potentiometers (speed, intensity). The controller is ready for operation immediately after applying USB-C power.

What is the open-source firmware and what can I do with it?

The complete firmware is available under the MIT licence on GitHub (graflichttechnik). You can program custom effects, modify existing ones or repurpose the controller entirely – e.g. for your own project. Knowledge of C/C++ and embedded development is an advantage.

What is the trigger input for?

It allows you to trigger the LED output externally – for example via button, light barrier, motion detector or microcontroller GPIO. Useful for stage effects, props or interactive installations.

Do I need more channels?

If you need two channels for CCT mixing (warm white + cool white) or other 2-colour setups, there is the FX2 nano 2ch USB-C (CT0032) or, with external 12–24V supply and 4A per channel, the FX2 nano 2 (CT0033).

Suitable LED modules for this controller?

The FX1 nano works particularly well with the 5V modules of the GKORE CINE Series, for example the BAR2x3CCT 5V or other modules from the LED Modules category.

GKORE FX1 nano 1ch LED Controller Effect Engine USB-C

Name: GKORE FX1 nano 1ch LED Controller Effect Engine USB-C
Brand: Graf Lichttechnik
SKU: CT0031
Price: 69.90 EUR
Availability: InStock

1-channel LED effect generator for flicker-free, precise lighting. Perfect for small LED projects and DIY setups.

€69.90

Available, delivery time: 2-5 days

Product number: CT0031

Stock: 4

Manufacturer: Graf Lichttechnik

Product information "GKORE FX1 nano 1ch LED Controller Effect Engine USB-C"

High-quality light effects with our 1-channel LED effect generator!
This small and powerful controller with USB-C 5V connection gives you the ability to control LED strips and LED modules with constant voltage and up to 4 A per channel flicker-free and precisely – thanks to 30 kHz PWM, high 10-bit dimming resolution and two potentiometers. Ideal for smaller LED applications, our generator already includes pre-installed effects that can be easily selected via the DIP switch. The additional trigger input activates the LED output when needed.

5 pre-installed effects and dimming functions:

CCT dimming
Candle effect
Blink 50/50
Fade IN/OUT
2-channel dimming

And the best part: We provide the firmware as open source under the MIT licence.
This means you can create and use your own individual effects.
Simply go to our GitHub and clone or fork the repository (...coming soon)

⭐⭐ https://github.com/graflichttechnik/

Key Technical Specifications

Channels: 1 PWM output
Output: up to 4 A at 5 V DC – max. 20 W
Power supply: USB-C, 5 V DC
PWM frequency: 30 kHz – guaranteed flicker-free for camera shots
Dimming resolution: 10-bit (1024 steps) for smooth transitions
Controls: 2 potentiometers + DIP switch for effect selection
Trigger input: for external activation
Firmware: open source (MIT licence)

Typical Applications

Film practical lighting: candle effect, flickering light, fades in small fixtures or props
Studio & photo: flicker-free dimming for camera shots
DIY fixture building: compact control powered via USB-C
Prototyping: quick results without programming
Developer projects: open firmware for custom effects

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Manufacturer information according to GPSR

Graf Lichttechnik UG
Goerzallee 299
14167 Berlin
Germany
info@graf-lichttechnik.de
+49 151 22348820
Manufacturer website

Responsible person according to GPSR

Graf Lichttechnik UG
Goerzallee 299
14167 Berlin
Germany
info@graf-lichttechnik.de
+49 151 22348820