Review on XtremeVision Flicker Canceller Capacitor Warning by Ken Ayo

Exactly what I was looking for. The LED fog lights and headlights in the new Ram trucks are not exactly compatible in all applications. My high beam LED headlights (in the factory case) are a dual element where they glow white and toggle to amber fog lights when toggling the switch. . With Rams Canbus and BCM wiring, they flicker, and this causes the LED bulb to think you're flipping with a switch. So they automatically change colors and switch back and forth. The capacitor is key to "absorbing" the canbus pulse signal from the factory wiring and truck switch to keep a good constant current flow and stabilize the light.