LIGHTING CIRCUIT AND VEHICULAR DIRECTION INDICATOR LAMP

A linear regulator () supplies a first drive current (I) to a first light source () in a first period in which the first light source () is turned on and a second light source () is not turned on, and in a second period in which the first light source () and the second light source () are turned on, and stops the supply of the first drive current (I) in a third period in which the first light source () and the second light source () are turned off. A switching regulator () supplies a second drive current (I) to the second light source () in the second period, and stops the supply of the second drive current (I) in the third period.