FLICKER-FREE: Is the way to be! But unfortunately if you're trying to run a set of LED headlight bulbs on a circuit that runs off pulsed voltage, then you're out of luck. Out of luck unless you've got a set of the 2Stroke Anti-Flicker harnesses that is!
DESIGNED: With some massive 10K mF Capacitors inside to help absorb the pulsing current coming from the factory wiring, then release it in a smooth fashion out into the LED bulb drivers, they're quite simple and effective.
IN AND OUT: No need for complicated wiring to solve this common issue. The 2Stroke Anti-Flickers are easy to setup. With standard H4, 9007, or H13 inputs / outputs, you can just "plug n play" in between the factory wiring and the Drivers on your bulbs.
DAYTIME RUNNING LIGHTS: Often run off both pulsed voltage, and low voltage. It's important to understand which one your car uses - because if you're having issues with a low voltage setup, these will not solve that problem (since they don't increase the voltage coming from the car...they just smooth it out).
CONSTRUCTION: Can't fault that! These things are really nice looking. With a matte black extruded aluminum shell surrounding the goods inside, they're well protected and weather resistant too. High quality titanium-colored techflex mesh insulation provides extra abrasion resistance for the input and output wiring too.