LED, the semiconductor light-emitting diode, is a solid-state semiconductor device, which can be directly converted into light. LED energy-saving lamps are high brightness white light emitting diode light sources, high light efficiency, low power consumption, long life, easy control, maintenance free, safe and environmentally friendly. LED energy saving lamp is green, suitable for family, shopping malls, banks, hospitals, hotels, hotels and other public places for a long time lighting.
It has no flash DC, very good choice for making flashlight or study lamp in terms of protecting eyes.

Light emitting diode -- the heart of LED is a semiconductor wafer, which is attached on a bracket, and one end is negative, another other end is connected with the power supplied of the cathode, the entire wafer put the resin together. The semiconductor chip is made up of two parts, a part of which is the P type semiconductor, and the hole occupies the dominant position in it, and the other end is the N type semiconductor, which is mainly electronic.

LED energy saving lamps as a category of general lighting LED, its name from the traditional lighting bulb, energy-saving lamps. LED energy-saving lamps are similar with the shape of the traditional energy-saving lamps , such a shape can meet the consumer's traditional aesthetic concept.

56 years ago, people had understood the basic knowledge of the semiconductor material that produced light, and the first commercial diode was produced in 1960. LED is an abbreviation for emitting diode light (light emitting diode). Instruments was the first used for LED light source instructions. Later all color LED in traffic lights and a large area display has been widely used, resulting in a good economic and social benefits. Automotive signal lamp is also an important field of LED light source application. For general lighting, people need white light source. In 1989, the development of white LED was successful.

LED will be the second Edison since the invention of light bulb, which will start a huge revolution of light. LED energy saving lamp is the new generation of illumination source after compact fluorescent lamp. Compared to ordinary energy-saving lamps, LED energy saving lamps is environmental protection, can be recycled, power consumption is smaller. By comparison of the same brightness, LED 3W energy-saving lamps--- 333 hours cost 1 kwh, while ordinary 60W incandescent lamp --17 cost 1 kwh, ordinary 5W energy lamp---200 hours cost 1 kwh.