Quote:
Originally Posted by BCOWANWHEELS
stock h/l switches are very robust so with incandessant or halogen bulbs they last for decades with no problems. I,ve had my 71 since new and replaced 1 switch
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Yes, but long vs short life isn't the only point of a relay upgrade. Stock wiring doesn't allow maximum voltage to reach the headlamps, and higher voltage with relays results in measurably brighter lights.