LED lighting energy-saving promotion has achieved good results in the United States1

US Department of Energy ( UnitedStatesDepartmentofEnergy, DOE) A survey was conducted to study how much energy can be saved by the application of LED lighting. According to the survey, LED lights installed and used in the United States in 2012 brought energy savings of 71 trillion British thermal units (BTU), Equivalent to saving 6 per year. $7. 5 billion in expenditure. The report also pointed out that if the United States replaces all lighting fixtures with LED, the energy cost savings can reach 39 billion US dollars. LED lighting in the United States has achieved energy conservation results. Due to the high electricity price in the United States, the price of LED lighting products in the United States is also continuously declining. It is foreseeable that LED development in the United States will be faster and faster. The US Department of Energy estimates that if the entire lighting device is converted to LED, it can save about 3. 5% of energy per year. 9 trillion British thermal units, which will be equivalent to about US $3. 7 billion in annual energy costs. The amount accounted for about half of the National lighting energy consumption in 2012.