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One advantage of using
fiber-optic cable for underwater lighting is that there is no electricity,
bulbs, or even lenses in the through-hull. Hence the fitting can be smaller
and maintenance is easier. Imtra’s system uses separate stainless
steel illuminator boxes with metal halite bulbs and cables that fit a
variety of standard Airmar through-hull fittings. A 12-volt/50-watt starter
kit with a single five-foot cable and an emergency plug costs $1,470.
There are also 110- and 220-volt versions with 150-watt bulbs able to
feed three lights simultaneously. At the top of the line, Imtra has illuminator
boxes with remotely switched white/red/yellow/green color wheels; a neat
effect that would surely be impossible with self-contained fixtures.
Imtra Phone:
(508) 995-7000. www.imtra.com.
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