Significantly extending the lifespan of 7440 LED bulb white to 60,000 hours. 【Fit socket】These LED bulbs are just replaced for7440A 7440NA 7440 7440SV 7441 992 WY21W W21/5W W21W etc. 【No CANBUS error 】Compatible with CK/SRCK and standard sockets, seamlessly compatible with 95% of vehicle computer systems.