news digest ♦ LEDs
replacement for traditional halogen lamps,” said Soraa CEO Eric Kim.
The company’s flagship product, the Soraa LED MR16 lamp, available first to commercial customers, is priced to achieve less than one-year payback. The company chose the MR16 format because it has been the most difficult LED lamp to do correctly, given its small size and intense, high quality brightness requirements. Soraa’s GaN on GaN MR16 is the first LED to rival the traditional 50W halogen. Its perfect crystal structure delivers a bright, highly-focused, controlled beam with the ability to produce a high colour rendering index and centre beam candle-power to match a standard halogen lamp.
Soraa’s efficient thermal design also delivers halogen-equivalent performance without requiring a mechanical fan. The lamp’s elegant, single- source LED design provides crisp object definition with solo shadow, uniform colour and a perfect beam pattern. Additionally, the Soraa LED MR16 lamp features optimised electrical design for total compatibility, making it suitable for use with all common transformers and dimmers, both indoors and outdoors.
“I’ve been searching for a long time for a quality LED to replace an MR16 halogen. Soraa’s lamp is a quantum leap over what is currently on the market, offering brighter light, dimmability, long lamp life, as well as dramatically improved energy efficiency,” said Randall Whitehead, a leading U.S. lighting designer. “Soraa’s is not only the first LED MR16 I’ve found that outperforms halogen lamps, it’s simply a best of breed product.”
Led by CEO Eric Kim, who brings deep technology and brand development leadership from his tenure at Intel and Samsung, Soraa is backed by over $100 million in funding from Khosla Ventures, NEA, and NGEN Partners.
“Lighting affects the way we see the world, and good light can make anything more compelling,” said Co-Founder Shuji Nakamura. “At Soraa, we are proud to create efficient lighting products that do not compromise on performance, offer the highest quality available and greatly reduce energy waste. We believe that with GaN on GaN, we have truly entered the next chapter in LED technology: LED 2.0.”
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www.compoundsemiconductor.net March 2012
Seoul Semi launches linear AC-power LED modules
The firm’s latest Acrich2 will enable customers to lower carbon dioxide emissions whilst reducing their electricity bills
Seoul Semiconductor is releasing a new AC- powered LED product in its Acrich2 family.
The Acrich2 Linear Module exhibits efficacies, light output levels, and power factors comparable to DC LED solutions while eliminating the AC to DC power supply. The solution is on exhibit at the Strategies in Light conference this week in Santa Clara, California.
Acriche 2 modules
Compared with the existing linear modules driven by direct current, the main feature of the Acrich2 Linear Module is the removal of AC/DC converter and the consequent optimized form factor. This type of solution increases the reliability by removing many of the components which cause early lifetime failures of other fluorescent replacement solutions. The design also provides more flexibility and space to work inside the fixture since the large ballast (power supply) does not have to be accommodated.
AC solutions of the past have required a sacrifice in power line performance such as power factor and total harmonic distortion (THD). Acrich2 solves this issue and provides power factor increases to 97%, power efficiencies up to 90% and THD approaching 10%. In addition, the Acrich2 Linear Module will be available with LM-80 and UL testing data.
“Let’s plant two trees,” proposed Sunghun Bae, vice president of Seoul Semiconductor. His argument is based upon the adoption of Acrich2 bringing similar effects of planting two trees compared with the use of the LEDs driven by a direct current. “Armed with optimised and simplistic system design,” says Bae, “the Acrich2 Linear Module is a state-of-the-art product that outperforms existing
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