a relay is absolutely not needed for the 3 headlight mod if you are using the right parts....without the correct parts it will act like a fuse...with the right parts it serves no purpose....what are the right parts? a good mil-spec axial diode and a quality switch....

i just recently upgraded both my headlight switch to a LED lighted switch, submersible like the factory work light switch (except it doesn't have a light) and I also updated the work light switch to have a green LED when flipped on, should say replaced the switch..

 

uncool