I want to talk about the sensors in the car, and you know, today it's not about the engine, but about the light sensor (or illumination). Many people ask me what it is, how it works and whether it is possible to do it yourself. It should be noted that the thing is really "cool", I would even say useful, as usual, I will tell you in simple words. A light (light) sensor is a small photocell (with a small relay) that automatically turns the car's headlights on or off - usually the front dipped beam...