How do I make randomized blinking Material for a control panel like in Star Wars

I am trying to make a Power Grid Sci-fi, and I need to make flickering/blinking buttons (the material not the lights… basically an emmissive Material).

In the footage there are these flickering lights in the backround and i would like them to be basically the samelink text

Make emissive masks for the buttons that you want to flicker. The masks should be grayscale (or split into RGB components) so that changing their color later would be easy. Multiply each mask by the color you want for the button. Then take the Time input node, pass it to a sine node, clamp it between 0 and 1 and multiply the intensity by the result. Then multiply it by the color result of each mask.

This will give you a slow fade in / fade out

This will give you a hard flickering.

Edit: If you want to control the frequency of the flickering add this parameter:

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thank you very much man this was really useful

Is there any way to get a shorter off time and a longer on? control the times? make the blinking random plz help me