A sample from the products for the Turnsignal Lamp include: Bulb(12v21w,amber), Lens, 03242-0416b, Lens.
The most reasonably priced component used on the Gsf1250s Bandit 2007 (k7) Usa (e03) Turnsignal Lamp is the Bulb(12v21w,amber).
This schematic depicts all components used in the Gsf1250s Bandit 2007 (k7) Usa (e03) Turnsignal Lamp partslist.