More and more modern vehicles are coming from the factory with headlight circuits that run on pulsed voltage to run things like Daytime Running Lights or as a means to prevent owners from changing their lighting system. Certainly a problem, but not with the right tools to fight back!
When running HID's on a vehicle with a pulsing headlight circuit, the ballasts will flicker/flash even if you install a relay harness - since the pulsing current will translate into the relays, which will click on and off rapidly (often sounds like a buzzing noise)
This capacitor link will solve that issue by absorbing that pulsing voltage, storing it as its own charge, and releasing it smoothly into the relay harness. Simple plug n play installation between the factory output and the harness input, with just one ground to connect.
Utilizes one 4700mf electrolytic capacitor, 14 gauge wiring, and OEM-quality 9006 Male/Female Input/outputs for compatibility with nearly all low-beam relay harnesses.