Well, i run 100 w in my car. all four high beam and lowbeam. The fuse box has 20 amp fuses. 100 watts/12 volts = 8.33 amps by 2 lights is 16.66 amps. Which is safe. Just make sure you wipe down those bulbs with alchohol before you put them it in. Makes them last much longer if they are cleaner.
your running 100watts???...that's too high.....it's not safe...both low and high beams run at 55watts stock.....safest is to get bulbs around that wattage....otherwise you'll end up like some people and have their bulbs burst..or their harness fried!!... :spin: