In what arrangement should I install multiple underwater lights?
There is no rule for that as each boat is different, but there are a few tips to consider. The available space and any external equipment (e.g. outboards) should be taken into consideration to avoid shadows.
Usually, placing a set of 3 or more lights should be done as symmetrically as possible, leaving even spaces between the fixtures. Another popular method is grouping the lights on each side of the transom. This creates a very impressive lighting result.
Here are a few layout examples that work well with most boats:
Keep in mind that the fixtures are magnified for illustration purposes. The fixtures are much smaller in size in proportion to the boat drawings shown below.
Example 1:
This is the simplest layout one can follow. It uses only 2 lights and it’s usually more appropriate for smaller boats with a single outboard.
Example 2:
Building on the previous example, this layout uses 4 lights for more vivid illumination. Try to keep the lights equally spaced from the center axis for a more uniform result.
How this setup looks on a 25ft rib. Model 01 is recommended for such boats.
Example 3:
The most popular arrangement for underwater lights when the boat is using 2 outboards. If the hull has a v-shape, you may place the central fixture about an inch or two lower than the other 2 fixtures.
This 3-light layout on a 25ft rib.
Example 4:
An alternative layout to follow if you desire more light and your boat has 2 outboard engines.
Larger Boats
Stern Drives
This is the most popular arrangement for larger boats that usually have stern or inboard-outboard twin engines. Model 03 or greater is recommended for such boats.
Inboards
The ideal layout for larger boats with inboards to create a dense, uniform and very vibrant lighting result.
An arrangement of 6 x Model 03 Deep Blue Fixtures on a 60ft yacht.
