We proudly warranty 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.
See our Warranty Statement . We recommend shipping via UPS because the package will be traceable and insured. 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.