Installed some LED bulbs on your turn signals and now they are blinking at double the speed? Our LED Resistors will slow them back down to normal. When installing LEDs on blinkers, they will hyperflash since your vehicle's CPU thinks something is wrong. No need to go back to stock, just add one LED load resistor per LED bulb to correct the error. Since these get hot, we highly recommend mounting them onto a metal surface away from any wires. Don't hyperflash if you don't want to...get our premium LED resistors to get your lights right.