Ala. Code § 32-5-244: Lights on Parked Vehicles.

(a) Whenever a vehicle is lawfully parked upon a street or highway during the hours between a half hour after sunset and a half hour before sunrise where there is sufficient light to reveal any person or object within a distance of 500 feet upon such street or highway no lights need to be displayed upon such parked vehicle.

(b) Whenever a vehicle is parked or stopped upon a roadway or shoulder adjacent thereto, whether attended or unattended, during the hours between a half hour after sunset and half hour before sunrise and there is not sufficient light to reveal any person or object within a distance of 500 feet upon such highway, such vehicle so parked or stopped shall be equipped with one or more lamps which shall exhibit a white or amber light on the roadway side visible from a distance of 500 feet to the front of such vehicle and a red light visible from a distance of 500 feet to the rear. The foregoing provisions shall not apply to a motor-driven cycle.

(c) Any lighted headlamps upon a parked vehicle shall be depressed or dimmed.