Headlight relay kit for 911 and 912 (1965-1973) models (max. 100 watt bulbs recommended). Easy-to-install kit uses factory connections and mounting points. With the relay kit, the electrical current travels straight from the battery to the headlight circuit at the fuse box, greatly reducing the load on the headlight switch and the failure prone column switch. In addition, more power is supplied to the headlights for maximum light.