WOW !! .....can you use a light vice an LED. That would have to be one hell of a resistor to drop the voltage that much. not to mention possiably alot of heat. Personally i think a 240V really small light would be a heck of alot easier. Are there spaceing issues or anything like that, is it 240 VAC or VDC. You have alot of options as to how to handle this.