Extremely Bright Switchback LED Bulbs for Turn Signal Lights

Regarding the compatibility of these bulbs, it's important to note that they are designed for dual-function lights that have both the parking/city light and turn signal function in a single bulb. To prevent the hyper-flash issue, a 50W 6ohm load resistor or a flash relay may be required.

Before placing an order, it's essential to check your vehicle's owner's manual or the original bulb to confirm the bulb size. The lamp compatibility guides available online and the Amazon filter system may not always be accurate, so it's crucial to verify the information.

These bulbs come in a pack of two, with one bulb emitting a Xenon white light for parking lights or daytime running lights, and the other emitting a yellow light for turn signal lights. The turn signal flashes in an "amber-off-amber-off" pattern, which is easier to see compared to the "amber-white-amber-white" pattern.

The bulbs are compatible with a wide range of vehicle models, including 3157, 3157A, 3057, 3155, 3157NA, 3357, 3457, 3457A, 4057, 4114, and 4157, among others.

The bulbs are equipped with a constant-current driving IC and an Aluminum Circuit Board, which makes them heat-resistant. However, the 50w 6ohm load resistor or flasher relay might still be needed to prevent the hyper-flash or ensure the bulb blinks correctly.

In summary, these bulbs are designed for dual-function lights and come with specific compatibility requirements. It's essential to review the vehicle's specifications and potentially use additional components to ensure proper functionality.

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