The primary function of marine navigation lights is to aid prevention of any major accident from happening.
 
All boats – whether big or small are required to have night lights as a part of the navigation systems.
 
Light patterns can be explained below:
There is a light at the right-hand side of the boat (right side when facing the bow of the vessel known as the starboard side) which is green in colour.
There is a light at the left-hand side of the boat (left side when facing the bow of the vessel is known as the port side) which is red in colour.
A white light is also placed at the back of the boat (known as the stern side). This shows an unbroken light over an arc of horizon of 135 degrees and fixed to show the light 67.5 degrees from right aft on each side
 
Brand: Aqua Signal