SemiLEDs has announced that its S35 product line has successfully completed the requirements of the stringent 6000 hour lumen maintenance test (LM-80) with cooperation of Integrated System Technology(IST).

SemiLEDs’ S35 series is the first product to pass the LM-80 after IST’s received the accreditation from the US Environmental Protection Agency (EPA). The results of other products will be down the pipeline, including the newly launched C35 family. In the Asian market, SemiLEDs is one of the few packaging companies that passed the test on a certified third party basis.

SemiLEDs CEO, Mr. Trung Doan stated that S35 and P2, warm and cool white (5700K and 3000K respectively) were the first series to go through the 6000 hour tests at both 350 and 700mA. The test result from IST showed that the lumen maintenance is 98.75% and 97.81% for 55℃ and 85℃, respectively, for 3000K emitter at 700mA driving current, far above the requirements of LM-80 for domestic indoor application at 91.8% and domestic outdoor and commercial usage at 94.1%.

The S35 is SemiLEDs first series of emitters with a 35x35mm footprint utilizing a silicon housing material. SemiLEDs had launched the C35 – the second generation of its 35 x 35mm emitters in June 2012. The C35 incorporates SemiLEDs EV LED chip and a ceramic base. The thermal resistance complements to SemiLEDs vertical chip on metal alloy substrate technology. Besides thermal management, SemiLEDs also implemented the latest innovation in phosphor technology, Color PrecisionTM binning, to it C35 product family allowing customers to be in control of their CCT distribution. With the new technology, consistent color can be produced within a single 7-step, 4step or 2-step MacAdam Ellipse centered in ANSI defined standard color spaces.