In 2009, researchers at the University of Cambridge in the UK developed an inexpensive LED bulb that uses less power to produce bright light. Each of these new bulbs costs £2 and can last for 60 years. Although it is smaller than a coin, it is 12 times more efficient than a conventional tungsten bulb, and it is three times more efficient than current fluorescent energy-saving bulbs. Unlike current energy-saving bulbs, this new type of bulb can be illuminated immediately. It is reported that this LED bulb can cut 3/4 of the household lighting bill. If the new light bulb is installed in the home and office, the annual electricity consumption in the UK can be reduced from 20% of total electricity consumption to 5%. This new LED bulb can be ignited for 100,000 hours, which is 10 times the ignition time of current energy-saving bulbs. It does not contain mercury, so it does not cause environmental pollution when it is cleaned. In addition, it does not flash when it is lit. The British government said that changing from a traditional light bulb to an energy-saving light bulb will reduce carbon dioxide emissions by 5 million tons per year. If this new type of light-emitting diode bulb is used, it will reduce carbon dioxide emissions more effectively. Prior to this, LED bulbs were expensive to manufacture, mainly using sapphire wafers as raw materials. However, scientists at the Gallium Nitride Center of the University of Cambridge in the United Kingdom have proposed a solution using silicon wafers as raw materials. Countersunk Close End Blind Rivets Countersunk Close End Blind Rivets,Close End Blind Rivets,Countersunk Close Blind Rivets,Countersunk Closed End Aluminum Rivets KD METALS (JINGJIANG) CO.,LTD , https://www.toprivet.com