337.15  LIGHTS OF LESS INTENSITY ON SLOW-MOVING VEHICLES.
   Any motor vehicle may be operated under the conditions specified in Ohio R.C. 4513.03 or a substantially equivalent municipal ordinance when it is equipped with two lighted lights upon the front thereof capable of revealing persons and substantial objects 75 feet ahead, in lieu of lights required in Ohio R.C. 4513.14 or a substantially equivalent municipal ordinance, provided that such vehicle shall not be operated at a speed in excess of 20 miles per hour.
(ORC 4513.16)
Penalty - see Sections 307.01 and 307.02