KC HiLites Wiring Questions
Does the white wire have to be connected? Yes, the white wire has to be connected to a 12-volt source. This circuit allows the switch to activate the relay, which draws power from the battery to the lights. If you do not want your KC's to be activated with your High or Low beam lights, then you can use your fuse box or your battery as an alternative 12-volt source.
What is the Amp draw of my KC lights? Amp draw is a simple mathematical calculation. Divide the total number of watts by the system's volts. For example, a 100-watt bulb in a 12-volt system will draw 8.3 amps. (100w / 12v = 8.3a)
What is the purpose of using a relay?  Using a relay keeps the high current portion of the circuit away from the switch and pulls the current directly from the battery to your KC's. The relay also allows you to tie your lights into a secondary 12-volt circuit such as your high/low beams or ignition.
How do I identify which lights I have?  Most all of our lights have the letters KC and a 4-digit number on the Lens, which can be used to identify which type of light you have. By comparing the shape and size of your light to the light Series pictured in the Replacement Parts section of our web site, you can select the matching Series and find the 4-digit Lens number in the chart to determine which light you may have and the replacement parts available for that light.

KC HiLites 23 Year Warranty KC HiLiTES proudly warranties all of our products against failure for a period of 23 years. If a housing or reflector begins to rust, if a switch fails, if a cover fades from the sun - we even warranty all of our bulbs against burnout. Exclusions are abuse and damage caused by accidents.  Defective products must be returned to KC HiLiTES Customer Service, freight prepaid. At our option, we will repair or replace items in question and return them at no charge. This warranty is limited to the original purchaser and a sales receipt may be required.  Please include your name, telephone number, and a street address where the product can be returned to you. When we receive your product, in most cases, it will be repaired or replaced within 2 business days and then returned to you via UPS ground service. UPS Next Day or Federal Express service is available at your expense.

Attached below are instructions for some of the wiring harnesses.  For additional information, please call 7-days a week 1-877-216-5446 or 701-253-5906
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KC HiLites 23 Year Warranty

KC HiLiTES proudly warranties all of our products against failure for a period of 23 years. If a housing or reflector begins to rust, if a switch fails, if a cover fades from the sun - we even warranty all of our bulbs against burnout. Exclusions are abuse and damage caused by accidents.

Defective products must be returned to KC HiLiTES Customer Service, freight prepaid. At our option, we will repair or replace items in question and return them at no charge.  This warranty is limited to the original purchaser and a sales receipt may be required.

Please include your name, telephone number, and a street address where the product can be returned to you. When we receive your product, in most cases, it will be repaired or replaced within 2 business days and then returned to you via UPS ground service. UPS Next Day or Federal Express service is available at your expense.