According to the United Nations Environment Program, lighting electricity accounted for 15% of total global electricity demand in 2010. IHS estimates that the global lighting market annual total income close to 1 trillion US dollars. Electricity prices rise, concern for climate change and desire for energy independence is the main cause of the global lighting market shift to energy efficient light source. According to a recent US Department of Energy (DOE) report, in 2010 the United States lighting consumption of electricity accounts for about 18% of the total electricity consumption, the report also mentioned that by 2025, relying on solid state lighting (SSL) technology can save each year Electricity is 217 megawatts (terawatt-hours, TWh), about one-third of the current US electricity consumption, equivalent to about 2.5 trillion tons of energy savings, which is about 2025 US wind power combined, Or the sum of 12 solar power stations in 2025. According to the electricity price of 0.1 US dollars electricity calculation, equivalent to an annual savings of 217 billion US dollars, equivalent to 20 million US households annual electricity consumption. This assumption is based on the achievement of efficient SSL significant technological advances as well as extensive market applications. This shows that SSL provides a significant reduction in energy consumption opportunities, thereby increasing US domestic energy security and reducing greenhouse gas emissions. Specifically, it is expected that by 2025, SSL light source needs to achieve 200 lumens per watt (lumens / watt), lighting market penetration rate of about 60% in order to achieve 21 billion kwh of energy-saving potential. Although this goal is large, but it can be achieved, requires a lot of scientific and technological improvements.