600% Brighter Than Halogens: The AUXITO 1157 Switchback LED Bulb features cutting-edge high-brightness LED chips, delivering an ultra-bright 4000 lumens per pair. Even in harsh weather, it ensures your vehicle is noticed faster and more clearly by other drivers.

CANbus Error-Free Design: These 1157 switchback LED turn signal lights feature a state-of-the-art built-in intelligent IC driver and high wattage, ensuring compatibility with 98% of vehicles. They operate seamlessly without radio interference and offer true plug-and-play installation. For a small number of special vehicles with unusual CANbus systems or installation issues—such as non-functional white/amber lights, failure to turn on, or switchback malfunctions—load resistors may be required. Simply contact us via Amazon Buyer Messages for assistance and solutions.

50,000-Hour Lifespan: Crafted with a full aviation-grade aluminum body and a 12,000 RPM turbo cooling fan that efficiently dissipates heat from critical bulb components, our 1157 LED switchback turn signal bulbs deliver an impressive 50,000-hour lifespan—minimizing the need for frequent replacements.

Hassle-Free Service: Given the complexity of automotive systems, compatibility issues may occasionally arise with a small number of vehicles post-installation. Should you encounter any difficulties during installation, feel free to reach out to us for assistance.

Dual Functionality: These switchback turn signal bulbs are compatible with the following sizes: 1157, BAY15D, 1016, 1034, 1157A, 2057, 2057A, 2357, 2357A, 2357NA, 2397, 3496, 7528, P21/5W. The amber light functions as a turn signal, while the white light serves as parking light/daytime running light.