A CyBear mentions, there are plenty of tutorials floating around if you want to create a flickering light, or a failing light in After Effects, but it seems to be more rare to find one for Cinema 4D.
That may be because C4D has the trusted Vibrate Tag which will allow you to essentially animate that type of jitter… but how would you easily control the jitter animation of a flickering light? A little bit of Xpresso, of course.
Here, CyBear shows how you can easily creating a scene with a flickering light, or some electrical short circuit look. This can be done scripted with the Vibrate Tag and some very simple Xpresso to help control the animation.
So you want to make this horror scene with a flickering light, or some electrical short circuit. The light of someone welding. Instead of placing thousands of keyframes this can be scripted with a vibrate tag and a bit of very simple XPresso. Enjoy!