Feature

●ONLY Fit for 4257CK 4257NA CK socket; 4257NALL, 4257NAK, 4257A with CK socket, these bulbs are ONLY fit CK socket and will not fit standard socket, if you are not sure, please check the fitment or contact us before purchasing.
●Its for Brightness and Safety: 24W, 1600LM, Upgrade function for switchback coming with the brighter mode for turn signal light and the normal mode for DRL/driving indicator.
●Built-in CANBUS system make its so different from others. The CANBUS-integration circuit that works with 95% of the vehicles today. You will not need to buy the extra resistors.
●Plug & Play: The bulbs are designed to directly replace the factory halogen lamp. No wiring No resistor. Notice: These bulbs are polarity sensitive. If the LED does not light up after inserting, simply remove it, flip the direction and reinstall.
●Warranty 45 days money-back guarantee, 1-year warranty, friendly customer service, and U.S. local customer support.

Description