CF18 (LM449) LED Turn Signal Flasher Diode Dynamics GMC Ice Cube Projector Technology: AlphaRex

Ice Cube Projector Technology: AlphaRex integrated their patented Ice Cube 3D LED Projectors that are powered by Osram Black Flat LED Chips

They absorb the pulsing voltage from the factory wiring and prevent the LED's from flashing

194 LED Bulb HP5 LED Blue Short Single

4 has a slightly larger LED driver than normal because the CANBUS anti-flicker and anti-error circuitry is built in

Direct Replacement: Nokya 880 halogen bulbs are performance halogen bulbs

CF18 (LM449) LED Turn Signal Flasher Diode Dynamics GMC Ice Cube Projector Technology: AlphaRexHyperblink Fix. Why do you need this module? When your factory turn signal bulbs go out, your vehicle's flasher senses that less power is being used, and it will blink the turn signals quickly to alert you. Since LED bulbs use less power, you get the same fast blinking, known as hyperblinking, even though the LEDs are functioning just fine. Basically, your car thinks the bulbs went out! To slow down the blinking to regular speed, you can add resistors