VEHICLE HEADLIGHT HAVING A CONTROLLER THAT MOVES THE LIGHT DISTRIBUTION DURING TEMPERATURE DERATING OF A LIGHT SOURCE

A vehicle headlight () includes a first light source unit (), a second light source unit (), and a controller (CO), in which the controller (CO) moves at least an upper edge of a low beam light distribution pattern () upward in a case of performing temperature derating on the second light source unit () based on a temperature of the second light source unit () in a state where a high beam light distribution pattern () is formed.