(A) All motor vehicles shall display at the rear 2 red lights visible when lighted for at least 500 feet, unless the motor vehicle was originally equipped with only 1 such light.
(B) A person shall not operate any motor truck or semitrailer 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 semitrailer truck having a width of any part in excess of 84 inches, unless it carries at least 2 clearance lights to indicate the outside left limit of the motor truck or semitrailer truck, 1 light colored white, to be attached to and be visible from the front of the motor truck or semitrailer truck, and 2 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 1 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 4-way flasher system, with 2 flashing yellow or amber lights visible from the front of the vehicle for a distance of at least 500 feet and 2 flashing red lights visible from the rear of the vehicle for a distance of at least 500 feet; or
(2) Two reflective lanterns, 1 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 (A), (B)