LED lights, including those housed in LED profiles, can flicker for various reasons. Here are some potential causes and solutions for flickering LED lights:

1. Faulty Power Supply: If your power supply isn't providing a constant, adequate flow of electricity, it can cause your LED lights to flicker. This can be due to the power supply unit itself failing or because it's not the correct type or capacity for your lights. Always make sure your power supply matches the voltage and current requirements of your LED strip.
2. Poor Quality or Damaged LED Strip: If your LED strip is of poor quality or has been damaged, it may result in flickering lights. Consider replacing the LED strip with a high-quality one from a reputable manufacturer.
3. Loose Connections: If any of the connections in your LED setup are loose, it can result in intermittent power and flickering lights. This could be the connection between the power supply and the strip, between the strip and the controller, or between individual segments of LED strip if you're using more than one. Check all connections to ensure they're secure.
4. Electrical Interference: Certain appliances or devices can cause electrical interference that may result in flickering LED lights. This is especially common with dimmer switches that aren't LED-compatible. If you're using a dimmer, make sure it's compatible with your LED lights. If the issue persists, you may want to consult with an electrician to investigate potential sources of electrical interference.
5. Overloading: If you're using more LED strips than your power supply or LED driver can handle, it may cause the lights to flicker. Check the capacity of your power supply and ensure you're not exceeding it with your LED strip setup.
6. Temperature Issues: LED strips that become too hot can start to flicker. Ensure the LED profile is providing adequate heat dissipation, the LED strip isn't being overpowered, and the ambient temperature isn't too high.

Remember, always exercise safety when dealing with electrical systems. If you're unsure of the problem or how to solve it, consult with a professional.