Not sure if this is what you mean, but here is two scenarios .
International
Rule 23
Lights and Shapes
(ii) a power driven vessel less than 7 meters in length, whose maximum speed does not exceed 7 knots may in lieu of the lights prescribed in paragraph (a) of this rule exhibit an all around WHITE light and shall, if practical, also exhibit side lights;
Inland
Lights and Shapes
Rule 25
(d)
(i) A sailing vessel of less than 7 meters in length shall, if practical, exhibit the lights prescribed in paragraph (a) or (b) of this rule, but if she does not, she shall have ready an electric torch or lighted lantern showing a white light which shall be exhibited in sufficient time to prevent collision.
(ii) A vessel under oars may exhibit the lights prescribed in this rule for sailing vessels, but if she does not, she shall have ready at hand an electric torch or lighted lantern showing a white light which shall be exhibited in sufficient time to prevent collision.
A single white light on a boat means the boat is moving.
When boating at night, a single white light tells you that it is either a light house or an anchored boat.
Small boat light.
If you are boating at night, and you see a single white light on another boat this light tells you that you are overtaking another vessel or it is anchored. It is mandatory for all engine powered boats and shines forward. If there is no light it indicates a sailboat under sail.
If you are boating at night, and you see a single white light on another boat this light tells you that you are overtaking another vessel or it is anchored. It is mandatory for all engine powered boats and shines forward. If there is no light it indicates a sailboat under sail.
You are looking at the Starboard (right) side of the boat. If you can't see the white stern light then that boat is pointed toward you.
A single white light on a boat typically indicates that it is either anchored or is a vessel that is not underway. In maritime navigation, this light serves as a signal to other vessels, helping to prevent collisions. It's important for boaters to recognize these signals to ensure safe navigation in shared waters.
Lighting requirements vary depending on whether you're talking about a sailboat or powerboat, International Rules or Inland Rules, the length of the vessel, and whether or not the vessel is at anchor. However, if at night you see a single white light only (no red or green lights), you're most likely looking at a boat at anchor.
Lighting requirements vary depending on whether you're talking about a sailboat or powerboat, International Rules or Inland Rules, the length of the vessel, and whether or not the vessel is at anchor. However, if at night you see a single white light only (no red or green lights), you're most likely looking at a boat at anchor.
Slow down and turn to avoid the small boat ahead of you.
Lighting requirements vary depending on whether you're talking about a sailboat or powerboat, International Rules or Inland Rules, the length of the vessel, and whether or not the vessel is at anchor. However, if at night you see a single white light only (no red or green lights), you're most likely looking at a boat at anchor.
Lighting requirements vary depending on whether you're talking about a sailboat or powerboat, International Rules or Inland Rules, the length of the vessel, and whether or not the vessel is at anchor. However, if at night you see a single white light only (no red or green lights), you're most likely looking at a boat at anchor.