Hey guys I'm just trying to figure out what the small bulb is for below the main headlight bulb on our bikes, as the headlight bulb does both high and low beam whats the small bulb for just daytime light? and also has anyone actually replaced the small bulb with say an LED white bulb or something to that affect? I ask because the small bulb looks about the same size as the bulbs I recently pulled out of the instrument cluster under the meters, thanks. Below picture gives somewhat of an idea.