How to Eliminate LED Strip Flicker When Using a DMX Controller?

2 Minute Read

Flickering LED strips can be a major issue on a professional stage, disrupting the desired atmosphere and causing discomfort to the audience. Stage engineers often encounter this problem and seek effective ways to solve it.

Why do LED Strips Flicker? - When changing the brightness of an LED strip, standard linear pulse-width modulation (PWM) is often used. At low brightness levels, people notice an annoying flicker.

high-quality driver dimming DMX LED Strip

Causes of LED Strip Flicker

Incorrect PWM Driver and Dimming Problems

LED strips can have different flicker frequencies when the brightness changes. A driver designed for stage use should take this feature into account and provide stable light without flickering.

Solution

Use a high-quality driver that supports dimming and has a built-in hysteresis algorithm to eliminate flicker. For example, the LEDGate DIN is a universal DMX dimmer with 8/16 bit universal 12-24V DC with RDM functionality for DIN rail mounting. It provides smooth and stable dimming of LED strips, preventing flicker.

Contact Problems

Poor contact in the connections can lead to unstable power supply to the LED strip and cause flicker.

Solution

Carefully check all connections, make sure they are reliable and free from oxidation. If necessary, clean the contacts and replace damaged elements.

Interference Problems

Electromagnetic interference can negatively affect the operation of LED strips and lead to flicker.

Solution

Use shielded cables to connect LED strips and the controller to reduce the impact of interference. It is also recommended to install interference filters on the power line.

DMX Device Incompatibility

Different devices operating over the DMX protocol may have different signal and setting requirements. Incorrect configuration or the use of incompatible devices can cause flicker.

Solution

Use modern DMX converters, such as the ArtGate-solid.

Equipment Selection Recommendations

For creating professional stage lighting, it is recommended to use high-quality equipment that ensures stable operation and prevents LED strip flicker.

Converter

Choose DMX/Ethernet converters with advanced features and the ability to fine-tune parameters. For example, the GigaJet20 Pro is an example of a high-quality controller that provides reliable operation and compatibility with all DMX devices.

Driver

Give preference to drivers designed specifically for stage lighting and supporting flicker-free dimming. For example, the LEDGate DIN.

We recommend that you familiarize yourself with our large article about LEDs. There you will find solutions for your shows or architectural lighting 

Conclusion

Flicker of LED strips when using a DMX controller can be caused by various reasons, including problems with the driver, contacts, interference, and device compatibility. To eliminate this problem, it is necessary to carefully check all connections, use high-quality equipment and, if necessary, consult with specialists.

For any questions you have, please contact us: +44 20 3868 9976

We will help you create professional lighting on the stage, avoiding unpleasant LED strip flicker.

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