Please note that it would be perfectly legal for an under-20 metre power boat to display the same lights as an “under-50 metre”. (These can be seen on the following pages).
However, the lights below are legal for an under-20 metre boat and are based on a combined lantern, with a separate masthead and sternlight.
Power Driven vessel, less than 20 metres in length, with combined lantern. Under Way, bow view
Power Driven vessel, less than 20 metres in length, with combined lantern. Under Way, port view. (Note that the red light is forward of the white masthead light as its a combined lantern on the bows of the vessel)
Power Driven vessel, less than 20 metres in length, with combined lantern. Under Way, stern view