§ 74.22  NUMBER OF LIGHTS PERMITTED; RED AND FLASHING LIGHTS.
   (A)   Whenever a motor vehicle equipped with headlights is also equipped with any auxiliary lights or spotlight or any other light on the front thereof projecting a beam of an intensity greater than 300 candle power, not more than a total of five of the lights on the front of a vehicle shall be lighted at any one time when the vehicle is on a highway.
   (B)   Any lighted light or illuminating device on a motor vehicle, other than headlights, spotlights, signal lights, or auxiliary driving lights, that projects a beam of light of an intensity greater than 300 candle power shall be so directed that no part of the beam will strike the level of the roadway on which the vehicle stands at a distance of more than 75 feet from the vehicle.
   (C)   (1)   Flashing lights are prohibited on motor vehicles, except as a means for indicating a right or a left turn, or in the presence of a vehicular traffic hazard requiring unusual care in approaching, or overtaking or passing. This prohibition does not apply to emergency vehicles, road service vehicles servicing or towing a disabled vehicle, rural mail delivery vehicles, vehicles as provided in § 74.29, highway maintenance vehicles, funeral hearses, funeral escort vehicles, and similar equipment operated by the Department or local authorities, which shall be equipped with and display, when used on a street or highway for the special purpose necessitating the lights, a flashing, oscillating, or rotating amber light, but shall not display a flashing, oscillating, or rotating light of any other color, nor to vehicles or machinery permitted by § 74.25 to have a flashing red light.
      (2)   When used on a street or highway, farm machinery and vehicles escorting farm machinery may be equipped with and display a flashing, oscillating or rotating amber light, and the prohibition contained in division (C)(1) of this section does not apply to such machinery or vehicles. Farm machinery may also display the lights described in § 74.25.
   (D)   Except a person operating a “public safety vehicle”, as defined in § 70.02, or a school bus, no person shall operate, move, or park upon, or permit to stand within the right-of-way of any public street or highway any vehicle or equipment that is equipped with and displaying a flashing red or a flashing combination red and white light, or an oscillating or rotating red light, or a combination red and white oscillating or rotating light; and except a public law enforcement officer, or other person sworn to enforce the criminal and traffic laws of the state, operating a public safety vehicle when on duty, no person shall operate, move, or park upon, or permit to stand within the right-of-way of any street or highway any vehicle or equipment that is equipped with, or on which is mounted, and displaying a flashing blue or a flashing combination blue and white light, or an oscillating or rotating blue light, or a combination blue and white oscillating or rotating light.
   (E)   This section does not prohibit the use of warning lights required by law or the simultaneous flashing of turn signals on disabled vehicles or on vehicles being operated in unfavorable atmospheric conditions in order to enhance their visibility. This section also does not prohibit the simultaneous flashing of turn signals or warning lights either on farm machinery or vehicles escorting farm machinery, when used on a street or highway.
   (F)   Whoever violates this section is guilty of a minor misdemeanor.
(R.C. § 4513.17)  (‘65 Code, § 71.17)