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LED Shines Brighter, Runs Cooler

LED Shines Brighter, Runs Cooler

A new LED bulb promises to offer more light at lower cost, while generating less heat.

Known as the Pearl-30, the new light-emitting diode (LED) produces 80 lm/W over the course of a 60,000-hour life and employs an extruded heat sink that is reportedly less costly than die-cast heat sinks.

"With our product, you use fewer LEDs but generate more light," says Tranh Nguyen, founder and CEO of PearlLED Inc., maker of the new product.

Nguyen accomplished that by combining a custom integrated circuit (IC) with a patent-pending optic design and then supporting the assembly with an extruded heat sink that creates turbulent air flow in the vicinity, providing more efficient cooling.

PearlLED claims the Pearl-30 will last 15 years, put out 2,000 lm of luminous flux and offer 85-percent energy savings over conventional incandescent bulbs. Its light spectrum can also be set via a "color gamut" programming circuit, thus enabling it to do color mixing.

Nguyen says the biggest advantages of the new product are best seen over the course of its lifetime. "Every watt we save means the user gets an extra $35 over the life of the product," he says.

PearlLED also designed the heat sink for the assembly, which is said to be one of the key reasons its costs are lower. "We designed for minimum weight and maximum heat exchange," Nguyen says. "Our heat sink is made of extrusion, which is why our cost is the lowest in the business. Other companies use die casting or they assemble the heat sink, fin by fin.

The bottom line, however, is efficiency. "We put out four times as much light as our competitors," Nguyen says. "And we're twice as efficient." For more information, go tohttp://designnews.hotims.com/27742-527.

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