ROVworld Subsea Information

Cool way to light the deep
Date: Thursday, October 08, 2009 @ 17:00:00 EDT
Topic: PRODUCT NEWS


Cool way to light the deepThe coolest-running deep-rated LED light in the world has been developed by top ROV manufacturer, Saab Seaeye. The super-intensity low power light comes with a unique design of thermal control that avoids failure through overheating. No other LED light has this capability.



Telemetry or PWM controlled, it monitors its status and gives data feed-back on current, input supply voltage, LED voltage, LED temperature and light output percentage, so is ideal for providing data for the diagnostic capability of the new generation of control systems. The LED light brightness can be controlled over its full range of brightness and retains a constant colour temperature over the range compared with tungsten halogen, which varies considerably when dimmed.

Rated at 6000 metres, the new LED light joins Saab Seaeye's 3000 metre rated technologically advanced range of LED lights especially developed to bring extra reliability, low power consumption and greater luminosity to underwater systems.

This means that in addition to bringing greater luminosity performance to ROV operations, underwater system developers worldwide can incorporate this range in other underwater equipment designs such as diver equipment, as it has a universal power interface that can take a wider range of power options than any other LED light. A mounting arrangement to provide horizontal and vertical adjustment of the light position is also provided.

Dave McInnes, Saab Seaeye's electronic design engineer behind the concept, says the new LEDs are far superior to both halogen and incandescent lamps.

'They use a quarter of the power, have a life of over 50,000 hours compared to 1000 hours for halogen and give higher luminosity than a 150 watt bulb - with a daylight white for more accurate colour rendering of video images than the typical 'yellow light'. Important too, adds McInnes, is they are more robust than other lighting systems.

The new range of LED lights is being fitted to all Saab Seaeye ROV systems. The Company is the largest electric ROV manufacturer in the world, supplying systems to the oil and gas industry, defence forces, marine science and hydro engineering. Its parent company, Saab Underwater Systems, is itself a world leader in sensor systems, precision engagement systems, and remotely operated and autonomous underwater vehicles.







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