The standard bulb in most of the Honda XR range is a H3 12v / 55w single filament bulb part number 34908-SA0-811.
These bulbs are a direct replacement with a difference!
They have dual / twin filaments which means you can use your
existing headlamp but now have a HI and LOW beam.
These are rated at 12v 35w / 55w
Honda XR bikes that use this H3 type bulb are listed below the pictures. Click to see larger.