How Does an Automobile Brake Light Work?
Battery Powered An automotive brake light is powered by current supplied directly from the car battery. A series of electrical wires are routed directly to the brake light housing. Current from the car battery activates the brake light; when current is cut, the brake light ceases to function. Driver Brake Pedal and Brake Light Switch The brake light switch, which is a small switch located between the brake pedal and the brake light, activates and deactivates the brake light. When the car driver steps on the brake pedal, the brake light switch is turned on, which sends electrical current to the brake light, causing it to glow. When the brake pedal is released, the switch connection is broken, or turned off, which cuts the current to the brake light, causing the light to go out. Brake Light Basics An automotive brake light is made up of a basic light bulb, base, and attached electrical wires. The brake light is screwed into the brake light base, which is where the electrical wires are at
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