Understanding the 2 Prong Flasher Wiring Diagram is a fundamental step for anyone looking to implement simple, effective turn signal systems or other flashing light applications. Whether you're working on a classic car restoration, a DIY go-kart, or even a small farm implement, this diagram is your roadmap to correctly connecting your flasher unit.
What is a 2 Prong Flasher and How Does it Work?
At its core, a 2 prong flasher unit is a thermal or electro-mechanical device responsible for creating the characteristic blinking effect of turn signals or hazard lights. Unlike more complex modules, the 2 prong flasher is designed for straightforward applications. It acts as an intermittent switch, interrupting the flow of electricity to the bulb(s) at regular intervals, causing them to flash on and off. The "2 prong" designation refers to the two electrical connection points on the unit itself: one for power input from the battery or vehicle's electrical system, and the other for output to the light bulbs.
The operation of a 2 prong flasher relies on a simple principle. When power is applied, a bimetallic strip or a coil inside the flasher heats up, causing it to bend and break the electrical connection. As it cools, it returns to its original position, re-establishing the connection. This cycle repeats, resulting in the flashing light. Here’s a breakdown of its typical function:
- Power Input: Receives constant power from the vehicle's battery or accessory circuit.
- Output to Lights: Connects to the turn signal or hazard light bulbs.
- Interruption: The internal mechanism cycles, allowing power to reach the lights and then cutting it off, creating the blink.
The primary advantage of a 2 prong flasher is its simplicity and affordability, making it ideal for basic automotive and small-scale electrical projects. The importance of using the correct 2 prong flasher wiring diagram for your specific application cannot be overstated, as it ensures proper function, prevents damage to components, and maintains safety.
For typical installations, you'll find the following connections in a 2 prong flasher wiring diagram:
| Flasher Prong | Connection Point | Purpose |
|---|---|---|
| Prong 1 (Input) | Battery/Accessory Power | Receives constant electrical power. |
| Prong 2 (Output) | Turn Signal/Hazard Light Bulbs | Sends intermittent power to the lights. |
This simple, two-terminal design is what makes it so easy to integrate into various systems where intermittent lighting is required without the need for complex controllers. It's important to match the flasher's amperage rating to the load of the lights you are using to prevent overheating or premature failure.
To ensure you get your project working right the first time, refer to the specific 2 prong flasher wiring diagram that came with your unit or is associated with the vehicle or equipment you are working on. This will provide the most accurate and reliable connection points for your application.