Vehicular light switch and vehicular light system

A vehicular light switch system comprising:

• a controller capable of switching a mode of a light for illuminating an outside in response to switching a position, wherein the light includes a head light and a position light, wherein the position includes an automatic position and a SMALL position, and wherein the automatic position is the position for performing a predetermined operation and the SMALL position is the position for turning on the position light;
• and
• a mechanism configured to return the position to the automatic position when the position is changed to the SMALL position,
• wherein when the position is in the automatic position, the controller turns on or off the light in accordance with a brightness outside the vehicle as the predetermined operation, and in a case where the position is returned by the mechanism to the automatic position after the position is changed to the SMALL position, the controller turns off the head light and turns on the position light, as the predetermined operation.