they are kind of like fuses but they won't blow. A regular bulb is 12v but an led bulb is less than that so when you put in an led for a turn signal, the car thinks that your turn signal is out and it blinks fast.(or something like that)
I think it's like $15 for all four of them, click those links and buy some. I got mine from autolumination.com
Hybrid Mode
