What kinds of led beads are there? Brief introduction of led lamp

People began to use LED lights a long time ago. Now led lights are everywhere in our lives. Let Bian Xiao show you the types of led lights and led beads ~

I. LED lights

LED lamp is a kind of light-emitting diode, which uses semiconductor crystal to directly convert electric energy into light energy.

There are more and more LED lights in the market, which can be used in many occasions.

1. Exterior lighting of buildings

Generally, LED spotlights are used, and the light beam is more concentrated and bright.

2. Landscape lighting

Because LED lamps are not all glass bulbs, they can be used for outdoor lighting for a long time. Such as street lamps, stairwells, landscape lighting. Now there are hidden LED lights, hidden in low flowers and shrubs, which make the night viewing have a different flavor.

3. Identify and indicate lighting

It is often used in places where signals need to be guided and recognized. For example, some emergency exit lights, as well as cinema lights, car lights and so on.

4. Indoor space display lighting

Because the LED lamp has no heat and ultraviolet and infrared radiation, it will not damage the exhibits or food. So it is generally used in museums, sales desks, west point shops and so on. LED lighting makes things in the room look clearer and more attractive. Of course, the bright color of the cake is indispensable for the lighting effect.

5. Entertainment places and stage lighting

LED lights can have different colors, so it is of course indispensable on a gorgeous stage. There are also some restaurants that use some colored lights to hit the wall, which can not only set off a different atmosphere, but also increase appetite and so on. Of course, there are some festive colored lights, which also set off a warm atmosphere for our festival.

6. TV screen

The ultra-high brightness and different colors and resolutions of indoor and outdoor LED display screens improve people's enjoyment of life.

2. Characteristics of 2.LED fluorescent lamps

Good quality, durability, long service life, energy saving and environmental protection, waterproof and moisture-proof, anti-leakage, high temperature resistance. The shell can be made of glass or PC, which can adjust the heat and cold of different light sources, with gorgeous colors and different shapes.

Three. Types of LED lamp beads

1. According to the color of lamp beads: red, green and yellow. ......

2. Start-stop LED lamps are divided into low-power LED lamps (in-line, patch type) and high-power LED lamps.

Online low power specifications include:

Straw hat/helmet, round head, concave, oval, tombstone (2*3*4) bullet, flat head, (3/5/ flat head/bread) piranha, etc.

Patch: 3020/3528/5050 These are all emitted from the front; 10 16/ 1024, etc. These are side lights.

3. According to the characteristics of the lamp surface, it can be divided into round lamps, square lamps and rectangular lamps. Surface light emitting tube, side tube, miniature tube, etc.

4. Buy LED lamp beads

1, LED bulbs have different brightness and different prices. Of course, the brighter, the more expensive ~

2, the same color, the purer the color, the higher the price.

3. LEDs with different light emitting angles have different light emitting angles. Special illumination angles, such as the total diffusion angle, are more expensive.

The longer the life, the higher the price.

5. The quality of large chip LED is better than that of small chip, and the price is higher.

6. Manufacturing materials: Many manufacturing materials for outdoor or entertainment LED lamps contain fireproof, pressure-resistant and leak-proof materials, and the price is correspondingly high.

Verb (abbreviation of verb) The difference between led lamp bead and patch

1, angle: the angle of LED lamp bead is very small, which belongs to relatively concentrated light, with a long range, but the irradiation range is limited; LED patches generally have a large angle, which belongs to scattered light, and the irradiation range is wide, but the range is relatively short.

2. Luminous principle: LED beads emit light by discharge, and LED patches emit light by cold light.

3. Shock resistance: The shock resistance of LED beads is not as good as that of LED patches.

4. Luminous color: LED beads can emit red, orange, yellow and green light, but LED patches do not have this ability.

5, environmental protection function: LED lamp beads do not contain mercury, a harmful metal. Comparatively speaking, LED patches are not good enough in environmental protection.

Six, led lamp beads and patch classification

1, embedded LED

The electrical connection is in the form of a 2-pin plug-in, which is a traditional low-end product. Due to the large package thermal resistance, the chip is difficult to dissipate heat, the light efficiency decays quickly and the service life is short. The advantage is that it is cheap and can be made into a small luminous angle.

2. coat

The electrical connection is in the form of 2, 4 or 6-pin patch, which is a commonly used light source at present. According to the package size, it is divided into 0805, 1206, 3528, 3535, 5050, 5060 and other specifications. The larger the package shape, the better the heat dissipation performance, the more power it can bear and the more light energy it can output.

3.piranha

It is a 4-pin in-line package, which has better heat dissipation performance and reliability than the ordinary 2-pin in-line package, can withstand the working current of 50~70mA, and is a commonly used light source at present.

4, high-power LED

The LEDs designed and produced with large-size chips and enhanced hot channel technology are usually divided into specifications such as 0.5W 1W3W5W. A single 1WLED can withstand the working current of more than 300mA and output luminous flux of more than 100 lumen, which is widely used in civil and commercial lighting, traffic control, photography, night vision and other fields. The price of high-power LED is still relatively high. With the gradual maturity of technology, it is expected to completely replace the traditional lighting source and lead the world into the era of solid-state light source.

Do friends know much about this ubiquitous LED light in life? Next time you choose LED beads, you won't be confused. The above is related to the types of led light beads, and I hope it will help everyone!

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