LED, also known as light-emitting diodes. Its basic structure is an electroluminescent semiconductor material, is a solid-state semiconductor devices, it can be directly into the electric light. Placed in a lead on the shelf, and then surrounded by epoxy resin seal, play a role in protecting the internal core, so the LED seismic performance. The heart of the LED is a semiconductor chip, one end of the chip attached to a bracket, one end is negative, the other end connected to the positive power supply, so that the entire chip is encapsulated by epoxy resin.
LED light-emitting diodes, is a kind of energy can be converted into visible light solid-state semiconductor devices, it can be directly into the electric light. The heart of the LED is a semiconductor chip, one end of the chip attached to a bracket, one end is negative, the other end connected to the positive power supply, so that the entire chip is encapsulated by epoxy resin. Semiconductor chip consists of two parts, part of the P-type semiconductor, in which the dominant hole inside, the other end is the N-type semiconductor, mainly electronic here. But when the two semiconductors are connected, they form a P-N junction between them. When the current through the wire acting on the chip, the electron will be pushed to the P area, in the P area with the hole in the electronic composite, and then will be issued in the form of photon energy, which is the principle of LED light. And the wavelength of light is the color of light, which is determined by the material that forms the P-N junction.
The initial LED used as instrumentation indicator light source, and later a variety of light color LED traffic lights and large area display has been widely used, resulting in a very good economic and social benefits. To 12 inches of red traffic lights, for example, in the United States was originally used long life, low luminous efficiency of 140 watts incandescent light as a light source, it produces 2000 lumens of white light. After the red filter, the light loss of 90%, leaving only 200 lumens of red light.
1,energy-saving. White LED energy consumption is only 1/10 of incandescent, energy-saving lamps 1/4.
2,longevity. Life of up to 100,000 hours or more, the ordinary family lighting can be described as "once and for all."
3,can work in high-speed state. Energy-saving lamps if the frequent start or turn off the filament will be black quickly broken.
4,solid-state packaging, are cold light source type. So it is very easy to transport and install, can be installed in any miniature and closed equipment, not afraid of vibration, basically do not need to consider cooling.
5,led technology is changing with each passing day, its luminous efficiency is amazing breakthrough, the price is also constantly reduced. A white LED into the family's era is coming quickly.
6,environmental protection, no mercury harmful substances. LED bulb assembly parts can be very easy to disassemble, no manufacturers can be recycled through other people.
7,with light technology to LED point light source for the surface light source, increase the luminous surface, eliminate glare, sublimation visual effects, to eliminate visual fatigue;
8,lens and shade integrated design. Lens at the same time with the role of light and protection, to avoid duplication of light waste, so that products more simple and beautiful;
9,high power led plane cluster package, and radiator and lampholder integrated design. Fully guarantee the led cooling requirements and service life, fundamentally meet the LED lighting structure and shape of any design, very distinctive features of LED lamps.
10,significant energy saving. Using ultra-bright high-power led light source, with high efficiency power supply, more than 80% energy saving than traditional incandescent, the same power brightness is 10 times the incandescent;
11, long life of 50,000 hours or more, more than 50 times the traditional tungsten lamp. LED with high reliability of the advanced packaging process - eutectic welding, full protection of LED long life;
12, no strobe. Pure DC work, eliminating the traditional light strobe caused by visual fatigue
13, green. Does not contain lead, mercury and other pollution elements, the environment without any pollution;
14, impact resistance, strong resistance to lightning, no UV (UV) and infrared (IR) radiation. No filament and glass shell, no traditional tube fragmentation problem, no harm to the human body, no radiation.
15, low thermal voltage work, safe and reliable. Surface temperature ≤ 60 ℃ (ambient temperature Ta = 25 ℃);
16, wide voltage range, the global common. 85V ~ 264VAC full voltage range constant current, to ensure that life and brightness are not affected by voltage fluctuations;
17, the use of PWM constant current technology, high efficiency, low heat, high precision constant current;
18, to reduce line losses, no pollution to the grid. Power factor ≥ 0.9, harmonic distortion ≤ 20%, EMI in line with global targets, reducing the power supply line power loss and to avoid the high-frequency interference on the grid pollution;
19, universal standard lamp, can directly replace the existing halogen, incandescent, fluorescent;
20, luminous efficiency can be as high as 801m / w, a variety of color temperature optional, high color rendering index, good color;
Obviously, as long as the cost of LED lights led technology continues to improve and reduce. Energy-saving lamps and incandescent lamps will be replaced by LED lamps, the state more and more attention to lighting energy and environmental issues, has been vigorously promoting the use of LED lamps.