All railroad carriers must equip trainmen in their employ engaged in switching and train movements in intrastate commerce in this State with electric hand lanterns, of a type approved by the Office of Regulatory Staff, containing at least one extra bulb capable of being immediately lighted in case of failure of the main bulb. The use by any railroad carrier of oil lanterns in connection with such movements is hereby prohibited. Any railroad carrier violating any of the provisions of this section must be punished by a fine not less than twenty-five dollars nor more than one hundred dollars and each day during which any flagrant violation continues constitutes a separate offense.