(A) All motor vehicles shall display at the rear two red lights visible when lighted for at least 500 feet, unless the motor vehicle was originally equipped with only one such light.
(B) A person shall operate any motor truck or semi-trailer truck on any highway unless it is equipped with a red light that automatically indicates the application of brakes and is visible from the rear a distance of not less than 500 feet.
(C) No person shall operate on any highway a motor truck or semi-trailer truck having a width of any part in excess of 84 inches, unless it carries at least two clearance lights to indicate the outside left limit of the motor truck or semi-trailer truck, one light colored white, to be attached to and be visible from the front of the motor truck or semi-trailer truck, and two lights colored red, to be attached to and be visible from the rear, in each case a distance of not less than 500 feet.
(D) When in operation on any highway slow-moving or motorless vehicles, except bicycles and electric low-speed scooters, shall have at least one light on the left side of the vehicle whether from the front or rear, showing white and of sufficient power to reveal clearly the outline of the left side of the vehicle and in such a manner that the outline may be observed clearly by approaching vehicles from a distance of at least 500 feet.
(E) When in operation between sunset and sunrise on any highway, motorless vehicles, except bicycles and electric low-speed scooters, shall have in operation:
(1) A four way flasher system, with two flashing yellow or amber lights visible from the front of the vehicle for a distance of at least 500 feet and two flashing red lights visible from the rear of the vehicle for a distance of at least 500 feet; or
(2) Two reflective lanterns, one on either side of the rear of the vehicle, showing white to the front of the vehicle and red to the rear of the vehicle, with the lantern on the left side of the vehicle situated at least 12 inches higher than the lantern on the right.
(KRS 189.050) Penalty, see § 70.99 (D)