Final answer:
Vessels operating between sunset and sunrise must use navigation instruments like GPS and compass, as well as lights to ensure visibility and safe navigation.
Step-by-step explanation:
Devices vessels must use when operating between sunset and sunrise include navigation instruments such as GPS, compass, and navigational charts. These devices are essential for determining the ship's position and course during the night when visibility is limited. Additionally, vessels may utilize lights such as navigation lights, anchor lights, and searchlights to ensure they are visible to other vessels and to navigate safely in the darkness.