News

12 May 2009

 

Seoul Semiconductor launches 120lm/W LED for general-purpose lighting

At the LIGHTFAIR 2009 event in New York last week, Korean LED maker Seoul Semiconductor launched a 120lm/W high-efficiency, SMD-type LED for general-purpose lighting.

The firm says that, combined with its metal substrate, luminous efficiency of the patented LCW100Z1 is improved by over 20% compared to typical top-view LEDs. Enhanced heat transfer also dramatically improves efficiency. Unlike existing LED chips, the new LED delivers over 120lm/W with an enhanced primary optic (a precision dome lens).

As an ultra-thin LED with dimensions of 3.5mm x 2.8mm x 1.6mm and a viewing angle of 120 degrees in cool white, the LCW100Z1 delivers up to 7.8lm (at 0.06W) at a low current of 20mA, and 14.3lm at 40mA. The LCW100Z1 comes in three ranges of correlated color temperatures (CCTs), including pure white, warm white and natural white. Also, an optimized thermal design improves reliability, yielding the efficiency needed for both indoor and outdoor lighting, the firm claims.

Pricing is comparable to similar-sized LEDs that can tolerate only half of the current, the firm claims. In contrast, in some instances, using fewer, higher-power existing devices has proven too costly and not provided an homogeneous light pattern without expensive and complex optics.

Samples have already been received by lighting appliance manufacturers worldwide. As it can immediately replace existing top-view LEDs, the LCW100Z1 is expected to be widely adopted for tube-type fluorescent lamps and surface light source lamps. It is also expected to serve as a catalyst for expanding the LED lighting market, as it allows lighting manufacturers to produce a variety of fixtures.

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