Hello again,
I was making some tries on my blade and led, and found out that if I attach a Trimmer / potentiometer to manage the light, it give a nice opening and closing effect, very similar to the led stripes effect, but ofc, without the led stripes and with a single led.

So my idea was to put a "slider" trimmer that also has a function to 'turn off' the whole circuit. Where can i find something like that? does it have a different name? Or should I add some sort of transistor to the slider in order to have what I want?