you might have to get a red tinted bulb to have it come out red when you hit the brakes and or have the bike running. I know americansportbike.com sells the clear cover might check and see if they have a bulb as well
<edit> I just went to americansportbike.com and they sell the clear lens with a red bulb here is the link
Autozone here in the states sells red l.e.d bulbs that will fit our bikes. I think they were around $15-20, kinda spendy for a bulb but a small price for the added coolness [cool]