Sounds like it is defective - you are only working with 12v - are the lights 12v.
Also you said you wired them up by the instructions - did you use a relay - I hope. did you run a separate hot wire to them threw a relay and not connect them to the headlight wiring.
What wattage are they.
Also you said you wired them up by the instructions - did you use a relay - I hope. did you run a separate hot wire to them threw a relay and not connect them to the headlight wiring.
What wattage are they.