An IC like those in the RGB 2 pins LEDs?It looks like there are three components, the largest block being a resistor to limit the LED current, then the LED in the center, followed by a very small IC device which is probably programmed to produce the flicker. That could be as simple as an oscillator or more complex, executing a programmed sequence.
It's clear from your picture that there's more than just an LED in the package.I've analyzed an LED taken from a votive candle.
Why is it flickering (they do that to remeber the fire of wax candles)? What's inside of it?
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by Jake Hertz