500% Brighter,Dual Color: The LASFIT T3 3157 Switchback LED bulbs are 500% brighter than halogen bulb. They feature 20 high-quality 3030 LED chips,delivering comprehensive 360°illumination.Each bulb provides 4000 lumens and 48 watts of amber light for turn signals, and a cool white light for daytime running lights and parking lights.The brightness is accurately measured,ensuring reliable performance.Experience enhanced style and vibrant colors while driving with these superior bulbs.

CANBUS Ready and Error Free: The LASFIT Switchback 3157 LED bulb is designed to work seamlessly with 99% of vehicle computer systems, thanks to its upgraded built-in resistor. After extensive testing, LASFIT has eliminated the need for annoying additional resistor decoders, providing a truly upgraded turn signal solution. This innovation ensures you no longer have to worry about hyper flashing issues. 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.

5-min Installation,Pluy&Play: Replace your Switchback turn signal LED bulbs in just 5 minutes with no modifications or extra decoders needed. The LASFIT 3157 LED bulbs are designed to fit perfectly into your housing, using the same OEM halogen bulb socket. Compatible with 3157, 3157A, 3057, 3155, 3157NA, 3357, 3457, 3457A, 4057, 4114, and 4157 front turn signal lights.

Longer lifespan: Our 3157 4157 LED bulbs feature an Intelligent Temperature Control System (ITCS), keeping them cool even on the hottest days. Housed in an aluminum casing with a textured finish, they optimize heat dissipation. Furthermore, internal heat filter fins enhance cooling, ensuring a longer bulb lifespan.

Innovative Protection Technology: The LASFIT T3 3157 CAN-BUS ready LED bulbs are equipped with an intelligent IC driver and mini fuses, which protect the bulb system from sudden high currents. This ensures superior lighting performance and extends the bulb's lifespan. Enjoy a stable and safer driving experience with these advanced bulbs.【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.