i'm not talking about swapping for a lower wattage, the bulbs i've been looking at are in the 80-100w range. i was just interested to see if anyone has done it to see how the been pattern was affected. i've tried out a couple of different higher wattage bulbs and they messed up the why the light is reflected inside the housing. my thought was that since the 9004 bulb's filaments sit flat they might through out a flatter beam of light. i guess it would be easier to just go to wally land and get a seven dollar bulb and try it out...