Headlight relays to save your old wiring and headlight switch

To save your old wiring and headlight switch, you can make use of relays. This way the high current is going directly from the car battery to your headlights. You'll be surprised how much more light, with the same lightbulbs, your headlights will give! Only one drawback and that is, if your amp-meter is still working, it doesn't "see" the current used by the headlamps.

Please note that the electrical schematic below is for a dual high beam system.
If you don't have dual high beams, you can omit one pair.

Please use fuses applicable for your headlight bulbs!
Use the formula P=U * I (wattage = voltage multiplied by current) or P/U = I (wattage (power) divided by voltage is equal to current)

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