Lexus Nx 2018 Triple-LED Headlights

Hello guys, I have my lexus now for about a year and i still don`t know if it has Bi-led lights. It is luxury package with Triple-Beam LEDs, when I push Strart button they make some weird up and down dance but I didn`t notice them move left and right when I turn the steering wheel. I found some tests about the Headlights on IIHS and they wrote curve adaptive? as yes. Please if you could tell me something about the lights, how they actually work?.