On August 2014, DOE of the United States released a new issue of 'forecast report on energy saving potential of solid-state lighting in general lighting applications', which predicted the power saving potential and market penetration rate of LED lighting applications in the United States by 2030. The report pointed out that in 2013, lighting electricity in the United States accounted for about of the electricity consumed by the whole society. The use of LED lighting products will greatly reduce the consumption of lighting electricity. The report estimates that the market penetration rate of LED lighting products in the general lighting market is expected to be in 2020 (Lumens-based-Hours) It will rise from 3 in 2013 to 48, and the lighting energy consumption will be reduced by 15; In 2030, LED lighting will dominate all lighting market segments. Its overall market penetration rate will reach 84, and lighting energy consumption will be reduced by 40. The current electricity price conversion is equivalent to saving 26 billion US dollars, enough for 24 million American homes to supply electricity. The rapid growth of LED lighting benefits from the competitiveness of LED costs and the promulgation of new energy efficiency standards. DOE's report once again shows people the unlimited market space of LED lighting from the perspective of energy-saving potential, and its prediction coincides with that of domestic industry organizations. According to reports released by domestic industry organizations, China's lighting electricity accounted for about 13. Of the total social electricity consumption in 2013. 6. Market penetration rate of LED lighting products (Based on market sales)For 8. 9. It is estimated that by 2015, the penetration rate of China's LED lighting market will exceed 30 and the annual electricity saving will be about 100 billion degrees; In 2020, the penetration rate of LED lighting market will exceed 70, saving about 340 billion degrees of electricity annually.