Fits 98-04 Dodge Durango Dakota CCFL Halo Chrome HeadlightsWhat is CCFL? New CCFL halo projector headlights have been on the market for some time now. CCFL stands for "cold cathode fluorescent lamps" or cold cathodes for short. Most of the times cold cathode is an element used within nixie tubes, gas discharge lamps, and vacuum tubes. The term cold cathode refers to the fact that the cathode is not independently heated. In spite of this, the cathode itself may still operate at temperatures as high as if the