Print article Foundation Findings 45 FLare Testing  
Green Cleaners testing overview
Procedures - True Colors
A Word About LEDs  
Results  
A Bright Finish
Some Final Thoughts  
More Tips and Basic Requirements  
 
Foundation Findings #44 - Boarding Ladders

A Bright Finish - Multi LED fixture

We hesitated to purchase any light that was not Coast Guard certified for our evaluation. But when an email from a parts retail supplier literally arrived the day we were headed out on the water, announcing the arrival of a new LED navigation light, we stopped by to pick it up. The NaviLight uses an array of 16 tiny individual bulbs to complete the required arc of illumination. This fixture was also portable, requiring just 3 AAA batteries.

Mutli-bulb LED fixtures are not new in the transportation and retail world. You see them in brake lights on cars and lighted signs for businesses. Some larger boats even have multi-bulb LED fixtures, but they cost hundreds of dollars. Our NaviLight setup cost about $100 for both the bi-color and white light, so we hoped that investment would prove valuable. And to our delight, it performed very well – a real surprise since the product targets the operators of small marine craft like tenders, dinghies and paddle craft.

On average, this fixture outperformed every light fixture we evaluated. At close range, one observer stated that the lights were "big", meaning their aura was large. And at 3 NM, another observer stated that the red and green LEDs were almost as bright as the large government maintained red and green lighted Aids to Navigation.

A note about color

There are four critical factors that determine the distances at which light can be seen: the intensity of the light (candlepower), its color (chromaticity), the height of the light above the water, and your height above the water. Green is the easiest color to see at night. Red is used for navigation lights because its wavelength is the longest of all colors and it is easily recognized by the naked eye.

Click to go to the next page of the Foundation Findings 45 report

This top-down view of the red and green LED light shows the array of bulbs needed to produce the required arc of illumination.
This top-down view of the red and green
LED light shows the array of bulbs needed
to produce the required arc of illumination.
This top-down view of the white all 'round light shows the 16 individual LED light bulbs that are used to produce the 360 degree arc.
This top-down view of the white all 'round
light shows the 16 individual LED light
bulbs that are used to produce the 360
degree arc.
What do you see? This is the green nav light reflected on the water's surface with the red reflected on the boat's chrome behind it.
What do you see? This is the green nav light
reflected on the water's surface with the red
reflected on the boat's chrome behind it.
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