Bathroom sink with illuminated water stream

Does anybody else have this? I am assuming so.

In the darkness, when I turn on the faucet at the bathroom sink, the stream of water illuminates. Like a fiber optic! It’s kind of neat.

My curiosity wondered how this is done, but when I look under the sink via the tiny cabinet door underneath, I don’t see any electrical to the faucet….i dont see a LED either, as there is a ring at the tip of the faucet that lights up too.

Anybody else notice this on theirs? How’s it done (just to quell my curiosity)?

https://youtu.be/fMAWJv3RtXM

A light-up faucet uses an integrated LED aerator powered by a built-in hydro-electric turbine, requiring no batteries or external wiring. As water flows through, pressure spins the turbine to illuminate the stream. Many models feature built-in thermal sensors that change color based on water temperature.

Thank you for the info. Mine is a bit different from the one shown in the video, but there are variances of anything found in life.

I will have to see if it changes color when the hot water flows! I’ve seen a purple-ish color similar to the exterior door handle, so far.