There are many criticisms of wal-mart, one of the world's largest retailer.However, it is fast becoming the sustainable development of enterprise leaders.Retailer's latest announcement is a good example. Wal-mart recently announced that it would buy LED to absorb dome light illumination lamps and lanterns of the new super shopping center in the United States, Asia and Latin America in the UK, and position of asda stores, it is the company's largest acquisition of LED lighting.

LED lamps will use 40% less energy, and help company to achieve its objectives, in order to reduce the energy per square foot to 20% of the buildings, the global power substation need to 2020 kilowatt-hours (KWH).

The LED dome light installation will start in asda and wal-mart stores in the UK a total of 200 new wal-mart stores will install LED lamps and lanterns in the next two years.

Sells the use of total illumination in about 90% of each building. Switch to the LED lamps will be reduced by more than 5% of each company, only in the U.S. energy use and save the long expected 340000 KWH.

This is equal to $34000 in every store, save - or a year from the atmosphere to remove carbon dioxide emissions by 327360 tons. And LED lamps and lanterns, expects a total of 6.2 million KWH saving, in the next 10 years.