Products, Materials & Tools | Dec 11, 2013

Simplify Your Design with Lextar High Quality COB

Lextar has whole COB product – the “Nimbus” series, covering widely from 500 to 10000 lm, applicable to bulbs, par light, down light, track light, street lamps and high bays. COB is widely adopted recently thanks to its quality light, no multi shadow, low thermal resistance and good uniformity. It brings benefits to manufacturers for its simplifying luminaire design and reducing assembly costs.

Lextar COB provides:
•   Complete series from 4W~120W, for all kinds of applications
•   Light emitting surface compatible with ZHAGA standard
•   High efficacy
•   Offering 3 step binning with CRI 70, 80 and 90
•   Low Rth, good heat dissipation

Application suggestion:
•   Down light
•   Par20, Par30, Par38
•   Track light
•   Flood light
•   High/ Low bay

Lextar Nimbus COB series offers in a range of light outputs from 400lm to 10,000lm. We provide whole high quality solutions of general lighting including down light, spot light, track light and industrial. With high quality standard, Lextar Nimbus COB series refers to the specifications of Energy Star offering CIE bin with 3-Step and 5-step MacAdam ellipse to keep best color consistency for designs that use single light source, COB.

Lextar Nimbus COB series is available with CCTs of 2700 to 5700 K and color quality (CRI) levels of 70, 80 or 90 for different kinds of design and applications. For applications such as museum or commercial lights that require a minimum 90 CRI, Lextar Nimbus 1500 and Nimbus 2000 COB deliver up to 100 lm/W warm white solution (3000K CCT, 90 CRI and R9>50).

For better cost for optical solutions, light-emitting surface (LES) of Lextar Nimbus COB series is designed as 9, 13.5 and 23mm which are also complied with Zhaga standard.
In addition, Substrate design of Lextar Nimbus COB with low Rth (Thermal resistance,℃/W) provides advantage on mechanical design for luminaire. Better heat transfer improved reliability of the lighting system.

For additional information, please visit or contact

About Lextar:
Lextar Electronics Corporation is a global leader in LED (Light Emitting Diode) solutions with a strategic advantage of integrating upper stream epitaxial, middle stream chip, downstream package and LED lighting applications. Founded in May 2008, Lextar is a subsidiary of AU Optronics, the leading TFT-LCD and solar PV manufacturer. With over 1,600 patents worldwide, Lextar is an innovator of product applications, which include: LCD backlights, luminaire, and various lighting solutions. To further stretch its market advantage, Lextar acquired LightHouse Technology Inc. in March 2010 and Wellpower Optronics in February 2013. It currently has 3 manufacturing plants in Taiwan, and 1 in Suzhou China, Lextar’s revenue in 2012 reached US$ 340 million; it was one of the few LED companies that kept growing in both 2011 and 2012, testament to the organizations strength and strategy.


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