dont use the bulb there, its silly. get a resistor and put it in series with the led(s) and it will keep from the error showing up. not sure how many watt resistor, it would depend on the watt draw of the bulb. cause if you do that and the bulb dies you gotta go open it up again. get a resistor from radioshack or the like that has a heat shield, and something that is continusly rated for the required wattage.