When operating a powerboat at night you see a green and white lights on another boat what do these lights tell you?

The green and white lights on another boat indicate that it is a sailing vessel under power. The green light typically shows the starboard (right) side of the vessel, while the white light can indicate the stern or an all-around light. This configuration helps you determine the other boat's direction and whether you should give way or maintain course based on the navigational rules. Always ensure to follow safe boating practices and maintain a proper lookout.