I wish to replace my original 2005 Sportster headlamp bulb for one that is mo bettah. More light, more power, better color, steroids, whatever is available. My question is "how do I know what bulbs are compatible with my lamp?" Does anyone have recommendations please? The stock high beam/low beam lamp has a current draw of 4.58/5 amps. Part #67329-03. :dunno: