About this item

[Ultra-Bright LED Bulbs] The Marsauto 3157 3156 LED Bulb features advanced high-brightness LED chips, providing a stunning 600% increase in brightness compared to halogen bulbs. Equipped with 24pcs 3030 and 8pcs 3020 top-grade LED chips, these bulbs deliver a powerful 3600LM and 30W of lighting for parking lights and backup lights. Each bulb's luminosity has been precisely measured, ensuring a visually captivating driving experience with vibrant colors.
[Hyper Flash Resistor Included] Designed to seamlessly integrate with 99% of vehicle computer systems, the Switchback 3157 LED bulbs from Marsauto incorporate the PC 3.0 IC driver with a built-in resistor. Through extensive testing, Marsauto has eliminated the need for additional resistors, providing an advanced turn signal bulb that eliminates worries about hyper flash. Note: Some super-sensitive models may require extra resistors, which can be obtained from us.
[3-LAYER COOLING SYSTEM] Constructed with 6063 aviation-grade aluminum, the Marsauto 3157 LED bulbs feature a state-of-the-art 3-layer cooling system. The latest cooling system includes a 15,000 RPM silent fan and heat sink holes in the lamp body, effectively doubling heat dissipation and ensuring a longer lifespan of up to 50,000 hours. This thoughtful heat dissipation design maintains the bulb at a reasonable temperature, extending its longevity.
[Compatible Bulb Models] These bulbs are compatible with various bulb models, including 3056, 3156, 3157, 3157A, 3157NA, 3157NAK, 3157K, 3047, 3057, 3357, 3457, 4057, 4157, 3757, 4157NA, and T25. They serve as an upgrade for multiple functions such as brake lights, tail lights bulbs, parking lights, blinker lights, red flashing stop Bulb, providing a brighter mode and enhanced performance.
[Plug & Play, Sockets Support] These bulbs are designed to fit both US standard sockets and CK sockets. They are specifically engineered to directly replace factory halogen lamps without any modifications or the need for extra decoders. With the Marsauto 3157 LED bulbs, you can easily replace your switchback turn signal bulbs within 5 minutes, ensuring a perfect fit into your housing based on the OEM halogen bulb socket.