http://optics.org/news/3/2/24
"The worldwide high-brightness LED market grew from $11.3 billion in 2010 to $12.5 billion in 2011, a growth rate of 9.8%, according to LED market analyst Strategies Unlimited. Demand for LED components in the lighting market grew 44%, from $1.2 billion to $1.8 billion."-Optics.org
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