Zone Tech HID Kit Computer Warning Canceller & Anti Flicker (Pair) &#9654; CANCELS WARNING ERROR - Sometimes, when a HID kit is installed in newer car models or cars with a computer controlled unit, often there is a error code showing on the dash board This is due to the fact that the HID kit is triggering a bulb out warning signal in your car's computer control unit. The Zone Tech HID Kit Computer Warning Canceller & Anti Flicker cancels bulb out or bulb failure warning errors! &#9654; ANTI-FLICKER - This device is designed to balance out the current draw of the HID kit and would offset the warning signals on the dash board. It solves flickering issues for most vehicles including: Cadillac, Chevrolet, Chrysler, Dodge (excluding Ram), Hyundai, Jeep, Mercedes Benz and any other cars with a computer controlled unit. &#9654; UNIVERSAL FIT - The Zone Tech HID Kit Computer Warning Canceller & Anti Flicker works with All After Market HID Xenon Kit: H1 H3 H4 H7 H8 H9 H10 H11 H13 880 881 9004 9005 9006 9007. However, these are for 35W HID only and work under 9 to 36V. &#9654; EASY INSTALLATION - There is no need for modification in installing the item. Its 100% plug-n-play. However, The special wire harness needs to be used with caution. The red wire needs connect to positive ( + ), black connect to negative ( - ). There is a capacitor on this wire harness to by-pass the error message signal and the capacitor is polarity sensitive, so the red and black wires need to be in the correct position. OTHERWISE THE CAPACITOR WILL BE BURNED.