LED as a new generation of energy-saving, environmental protection, long-life lighting source has become a consensus of all mankind. With the LED light source of substantial price reductions, and highly integrated LED driver power supply special chip with its production of power costs have gradually declined, the retail price of cheap LED bulb is close to the retail price of the fluorescent energy-saving lamps of the same power, LED as a fourth-generation light sources replace incandescent, fluorescent pace is being accelerated, affordable LED lighting into the tens of thousands of homes of ordinary people is becoming a reality, and if the government can be supported by financial subsidies, will people earlier benefited from earlier enjoy, to make society more energy-efficient.
The lighting LED chip LED chip early low because of its light-emitting brightness can only do LED are. Today, the lighting of the brightness of the LED chip can meet the technical standards for lighting, enough to replace incandescent and fluorescent lighting.
The LED chip is a semiconductor PN junction, is a light emitting diode. To give an appropriate forward voltage and the forward current, it will be able to emit light. LED light-emitting diode is to convert electrical signals into optical signals junction type electroluminescent light emitting semiconductor device.