From very early now people have started to use LED lights. Now led lamps are all over every corner of our life. Let me take you to understand the led lights and led light bead types it ~
A. LED lights
LED lights are light-emitting diodes, it is the use of a semiconductor crystal, the electrical energy is directly converted into light energy.
LED lights are growing in the market and can be used in a variety of applications.
1. Building exterior lighting
Generally used LED spotlights, the beam is more concentrated and bright.
2. Landscape lighting
Because LED lights are not all glass bubble shell, can be used for long-term outdoor lighting. For example, street lights, stairwells, gardening landscape lighting. Now there is a very hidden design of LED lights, hidden in the low flowers and shrubs, so that the night viewing has a different flavor.
3. Signs and indicative lighting
More used in some of the need to guide the language, marking the signal place. For example, some of the emergency exit lights, as well as movie theater lights, vehicle lights, lighting and so on.
4. Indoor space display lighting
Because LED lights do not have heat and ultraviolet and infrared radiation, will not damage exhibits or food. So they are usually used in museums, sales desks, pastry stores, etc. LED lights make items look clearer and more fascinating indoors. The bright color of the cake is certainly not without the effect of the light.
5. Entertainment venues and stage lighting
LED lights can have many different colors, so in the gorgeous stage of course it is not missing. There are some restaurants use some colorful lights on the wall, not only can bake a different atmosphere, but also can increase appetite and so on. Of course, there are some festive colored lights, but also for our holiday baked warm atmosphere.
6. Video screen
Indoor and outdoor LED display screen of ultra-high brightness, as well as different colors, resolution, improve people's enjoyment of life.
II.LED fluorescent lamp features
Good quality, durability, long service life, energy-saving and environmentally friendly, can be waterproof, moisture-proof, leakage-proof, high temperature resistance, the outer cover can be selected from the glass or PC material, but also adjustable out of the cold, hot different light sources, colorful, but also can be made into different shapes.
3. LED lamp bead types
1. According to the lamp bead color: red, green, yellow ......
2. Starting from the end of the LED lamps are divided into: low-power LED lamps (direct insertion, SMD SMD), high-power LED lamps
Direct insertion of low-power specifications are:
Straw hat/steel helmet, round head, concave, oval, tombstone-type (2 * 3 * 4) Bullet, Flat head, (3/5/Flat head/bread-type) piranhas and so on.
SMD SMD: 3020/3528/5050 these are front-emitting; 1016/1024, etc. These are side-emitting light sources.
3. According to the characteristics of the light surface: round light, square light, rectangular. Surface light-emitting tube, lateral tube, miniature tube and so on.
IV. Selection of LED lamp beads
1, LED lamp beads of different brightness, different prices. Of course, the brighter the more expensive ~
2, the color is consistent, the more pure the color, the higher the price.
3, light-emitting angle of use of different LED light-emitting angle is not the same. Special light-emitting angle, such as full diffuse angle, the higher the price.
4, the longer the life of the price is higher.
5, the quality of large chip LED than small chip is better, the price is higher.
6, production materials: many outdoor or entertainment LED lights with the production of materials containing fire, pressure, leakage and other materials, the price is correspondingly high.
Fifth, led lamp beads and patch difference
1, angle: LED lamp beads do very small angle, belong to the light is more centralized, the range of a long distance, but the irradiation range is limited; and the LED patch of the general angle to do a lot of light is more scattered, irradiation range is wide, but the range of relatively close.
2, light-emitting principle: LED lamp beads are used to discharge the light, and LED chip is used in the cold light-emitting.
3, shock resistance: LED lamp beads are not as good as LED chip shock resistance.
4, light color: LED lamp beads can emit red, orange, yellow, green color light, while the LED patch does not have this ability.
5, environmental protection features: LED lamp beads do not have mercury as a harmful metal, compared to the environmental aspects of the LED patch is not good enough.
Six, led beads and SMD classification
1, straight LED
Electrical connection to take the form of 2-pin straight plug, is the traditional, low-end products, because the package thermal resistance, chip heat dissipation is not easy, so the luminous efficacy of the attenuation of the fast, short life. The advantage is cheap, can be made into a very small light angle.
2, TOPLED
Electrical connection to take 2, 4 or 6 pins SMD way, is the current common light source. According to the size of the package shape, divided into 0805, 1206, 3528, 3535, 5050, 5060 and other specifications, the larger the package shape, the better the heat dissipation performance, can withstand the power of the corresponding also the larger, the more light output.
3, Piranha
is a 4-pin inline package form, heat dissipation performance and reliability are better than ordinary 2-pin inline, can withstand 50 ~ 70mA operating current, the current commonly used light source.
4, high-power LED
Using a large size chip and strengthen the hot channel technology design and production of LED, usually divided into 0.5W1W3W5W and other specifications, a single 1WLED can withstand more than 300mA operating current, and output more than 100 lumens of luminous flux, widely used in civilian commercial lighting, traffic control, photography, night vision and other fields. High-power LED prices are still high, with the gradual maturation of the process, it will hopefully completely replace the traditional lighting source, leading the world into a solid-state light source era.
Do partners have a better understanding of the ubiquitous LED lights in this life? The next time you pick LED light beads will not be confused. The above is about led lamp bead types of related content, I hope it can help you!
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