If it's top lights led ones are fine doubled up off existing wiring, not sure how the loom would take halogens as it is only a single loom, it would probably take it but will be on the wiring and fuse limit with 50w bulbs. I've double Leds on mine and for the current draw could do 4 each side if I really wanted, but that would be silly...Are you talking beltline or top lights?