Blinking particle

I’m currently trying to get my particles to blink as they float in the air like fireflies or pixie star flashing / blinking. Other than using dynamic material instance or blueprint, I was wondering whether can it be done on the particle cascade numbers using alpha over life. I’ve been mainly playing around by punching in numbers but i couldn’t get it to work.

Is it even possible that I could make my particles blink randomly?

Hey I am closing this question as a duplicate. The original question and answer can be seen here, https://answers.unrealengine.com/questions/160780/blinking-particle.html