LED drive power
Light emitting diode LED (Light-Emitting Diode), it is made of semiconductor materials can convert electrical signals to optical signals of the light emitting device. Has spectral characteristics, short response time, low heat, high luminous efficiency, long life, small size, etc.. LED lights are widely used in lighting lamps, LED display, automotive LED, LCD backlight and other fields. With the development of LED lighting technology is expected to electricity for lighting can save about 50% by 2020. LED energy-saving lamps development prospects to expand market demand can reduce costs, due to the market to buy the amount is too small, so more expensive, if further promote the use of, especially the beginning of the government to give some support to make this product more production, the cost will come down. Another perspective, the demand, the cost of the product will be reduced.
LED lighting with LED drive power, specifically to supply power to the LED lights, often referred to as LED driver power supply or LED driver with ordinary switching power supply, it is somewhat different, mostly constant current mode (constant current LED drive power source), output requirements of high precision constant current, LED light brightness effect. LED power supply are widely used: street lights, tunnel lights, LED interior lights, buildings, roads, bridges, squares and building facilities, lawn lamps, wall lights, mobile phones, computers and other information flat panel display: the display panel, dynamic billboards, analog animation compartment within the indicator and internal reading lights, car brake lights, tail lights, turn lights, side lights, explosion-proof lamps, miner's lamp in mining production.
According to the National Development and Reform Commission released on November 4, 2011, on a step-by-step to prohibit the import and sale of general lighting incandescent Notice, the main contents: phase-out targets for general lighting incandescent, including E14, E27 screw type and B22 bayonet type. November 1, 2011 to 2012 for the transition period; October 1, 2012 banned the import and sale of 100 watts and above ordinary incandescent lighting; October 1, 2014 banned the import and sale of 60 watts and above ordinary incandescent lighting; October 1, 2015 to 2016, the mid-term evaluation period; October 1, 2016 banned the import and sale of 15 watts and above ordinary incandescent lighting, or, as the results of mid-term evaluation be adjusted. China is the world's largest consumer of incandescent production, China's incandescent production and domestic sales were 3.85 billion and 1.07 billion last year. It is estimated that electricity for lighting accounts for about 12% of the total electricity consumption, the use of energy efficient lighting products to replace incandescent, energy saving potential. Phasing out of incandescent, is of great significance for the promotion of China Lighting Industry structure optimization and upgrading, promote the realization of the "second five" energy conservation goals and tasks, and actively respond to global climate change.