Lights must be used if you are riding on a roadway with a speed limit over 25 mph.

Like a motor vehicle, they must be used from 1/2 hour after sunset to 1/2 hour before sunrise, or whenever other vehicles are not clearly visible at a distance of 1,000 feet. Front lamps must be white and rear lamps must be red. Each must be visible from at least 1,000 feet. Be safe. Be courteous. Share the road.