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LED Flasher Relay

$29.99 Inc. GST

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Availability: In stock

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An LED flasher relay, also known as an LED flasher or LED flasher relay module, serves a specific purpose in automotive lighting systems. Its primary function is to control the flashing or blinking of LED turn signals or hazard lights in a vehicle. The purpose of an LED flasher relay can be explained as follows:


  • Compatibility with LEDs: LED (Light Emitting Diode) bulbs have become increasingly popular in automotive lighting due to their energy efficiency, longevity, and brightness. However, LEDs have different electrical characteristics compared to traditional incandescent bulbs. LED flasher relays are designed to work with LEDs specifically, as they require a different flash rate and load than incandescent bulbs.


  • Maintaining Blink Rate: LED flasher relays ensure that the turn signals or hazard lights blink at the correct rate. This rate is typically set to comply with safety regulations and make the vehicle’s signaling visible to other drivers. Without a compatible flasher relay, LEDs may blink too quickly or not at all, which can create confusion and safety hazards.


  • Load Resistance: LED flasher relays often include load resistance or electronic circuitry to mimic the load of traditional incandescent bulbs. LED bulbs have lower resistance and draw less current than incandescent bulbs. The load resistance helps achieve the correct flash rate and prevents “hyperflash” or rapid blinking.


  • Preventing Rapid Blinking: Rapid blinking of turn signals (hyperflash) can occur when using LEDs without a compatible flasher relay. This can be distracting to other drivers and may even give the impression that a bulb is burned out. LED flasher relays solve this issue by regulating the flash rate.


  • Avoiding Bulb-Out Indicators: In some modern vehicles, the onboard computer system monitors the electrical load on the lighting circuits. When LEDs are installed without a compatible flasher relay, the system may trigger a “bulb-out” warning on the dashboard, indicating that a bulb is malfunctioning. Using an LED flasher relay can prevent these false alerts.


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