【CANBUS Ready, Error Free】: LASFIT T3 3157 switchback led bulb with built-in resistor, solve the decoding problems of 99% vehicles. Perfectly fits for front turn signals, no more having to hack your wiring to ensure you avoid "bulb-out" warnings, no more hyper flash. Note: These bulbs will still hyper flash or have compatible issue after installing on Chevy Corvette 1997-2013 and Ram trucks, please don't purchase this product if you have one of the above vehicles.

【500% Increase Brightness】: Each 3157 led turn signal bulb has 20pcs high quality LED chips, truly 500% brighter than halogen bulb, 48w, 4000lm per pair, which makes it easier to see when your turning. Color: Amber(signal light) / White (Daytime running/parking light). Fit Size: 3157 3157A 3057 3057A 3457 3457A 4057 4157 4157NA

【30,000Hrs Long Lifespan】: The 3157 amber LED bulbs feature an Intelligent Temperature Control System (ITCS), ensuring optimal performance even on scorching days. They are designed with an aluminum casing that has a textured finish for enhanced heat dissipation. Additionally, internal heat filter fins provide further cooling, ensuring reliable performance.

【5-Min, Easy To Install】: Replace your turn signal bulbs in just 5 minutes with no modifications needed and no extra decoder required. The LASFIT 3157 LED bulb Switchback are designed to perfectly fit OEM halogen bulb sockets, ensuring a seamless fit in your housing. Compatible with standard sockets for front or rear turn signal lights, including models 3056, 3456, 4156, 3047, 3057, 3155, 3357, 3454, 3457, 4057, 4157, 3757, 3057A, and 3357NA.

【RELAIBLE SERVICE】: We provide 45 days money-back, friendly customer service and U.S. local support. But Warranty does NOT cover labor, diagnostics, towing, rental car, or any other expense related to an item being defective/damaged. Notice: Since the complexity of automotive systems, some vehicles' 3157 dual-filament front turn signal comes with CK circuits, which will need CK bulb, please refer to the last image to check if your vehicle is listed in it, if it is, please don`t purchase these 3157 standard bulbs and search "Lasfit 3157 ONLY for CK socket" to find the correct ones.