Patent ID: 8866388

Claim:
A vehicle lamp controller comprising a lamp control unit configured to perform lamp control, in which light amount or light distribution of each of a plurality of lamps to be provided on a vehicle that runs on electric power from a battery is controlled, according to a priority that is assigned to each of the plurality of lamps, wherein the priorities are determined based on degrees of necessity of the plurality of lamps in securing safety for the vehicle; and a remaining battery charge detecting device configured to detect a remaining charge of the battery, wherein the lamp control unit is configured to perform the lamp control according to the priorities when the remaining charge becomes lower than a predetermined threshold; the plurality of lamps include a first lamp and a second lamp that is higher in the priority than the first lamp, the lamp control unit is configured to, when the remaining charge becomes lower than the predetermined threshold, reduce power that is consumed by the first lamp and maintain power that is consumed by the second lamp, the plurality of lamps include a headlamp having a high-beam lamp and a low-beam lamp, and the first lamp and the second lamp are the high-beam lamp and the low-beam lamp, respectively.