Our hb3/hb4 bixenon quad relay wiring harness provides the ultimate in flexibility and safety for powering your complex lighting setup. Utilizing both hb3 (lowbeam) and hb4 (highbeam) input terminals, you can use this single wiring kit to power up to FOUR ballasts and bulbs…perfect for that quad retrofit install. Both inputs run on their own dedicated circuits, meaning you can have them trigger each pair of ballasts to power on independently at different times for the highest level of flexibility. All wires are color coded to indicate corresponding input and output leads for extremely simplified installation. This truly innovative dual input/output design relies on ample lengths of highest quality thermo-insulated wiring as well as a set of replaceable 20 amp in-line blade fuses and 40 amp replays to ensure maximum safety and power efficiency. This single package will eliminate unnecessary wire clutter and installation headaches versus using two separate harnesses. With most modern-day ballasts requiring a surge of over 20,000 volts upon startup, this wiring harness is essential to stabilize the electrical load/stress on your vehicles’ battery system and eliminates the common ‘flickering’ issue associated with HID kits that don’t use a relay kit.
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