Where do you plan to pull the needed 6v to run this light? The forums are full of stories of RAD bikes blowing the headlamp circuit (mine included) by trying to drive a lamp with too much amperage draw. Better off feeding the lamp from another power source location, as the existing headlamp circuit has a very low amp rating (.0A I read somewhere). Any more draw and it WILL blow that circuit in your controller. I pull power from the charging port of the battery, and can drive 3 1200 lumen lamps, with no issues! Make certain the light you buy can handle the 48 - 52 volts!