316.217  When lighted lamps are required.--

(1)  Every vehicle operated upon a highway within this state shall display lighted lamps and illuminating devices as herein respectively required for different classes of vehicles, subject to exceptions with respect to parked vehicles, under the following conditions;

(a)  At any time from sunset to sunrise including the twilight hours. Twilight hours shall mean the time between sunset and full night or between full night and sunrise.

(b)  During any rain, smoke, or fog.

(c)  Stop lights, turn signals, and other signaling devices shall be lighted as prescribed for use of such devices.

(2)  Whenever requirement is hereinafter declared as to the distance from which certain lamps and devices shall render objects visible, said provisions shall apply during the times stated in subsection (1) in respect to a vehicle without load when upon a straight, level, unlighted highway under normal atmospheric conditions, unless a different time or condition is expressly stated.

(3)  Whenever requirement is hereinafter declared as to the mounted height of lamps or devices, it shall mean from the center of such lamp or device to the level ground upon which the vehicle stands when the vehicle is without a load.