What Are Micro LED Lights?

The LED lamp is a chip of electroluminescent semiconductor material. It is cured on the bracket with silver or white glue, and then the chip and the circuit board are connected with silver or gold wires. The periphery is sealed with epoxy resin to protect the internal core wires. Role, and finally install the shell, so the shock resistance of LED lights is good.

1. Energy saving: The energy consumption of white LED is only 1/10 of that of incandescent lamps, and 1/4 of that of energy-saving lamps.

2, long life: life can reach more than 100,000 hours, for ordinary home lighting can be described as "once and forever."

3. It can work at high speed: If the energy-saving lamp is turned on or off frequently, the filament will turn black, and it will soon break down, so it is safer.

4, solid state packaging, belongs to

For general lighting, people need a white light source more. White light LED turned on in 1998

1.LED light source has high luminous efficiency

Comparison of luminous efficiency: incandescent light effect is 10-15lm, halogen light effect is 12-24 lumens / watt, fluorescent lamp 50-90 lumens / watt, sodium lamp 90-140 lumens / watt, most of the power consumption becomes heat loss.

LED light effect: It can emit 50-200 lumens / watt, and has good monochromaticity of light emission, narrow spectrum, no need to filter, and can emit colored visible light directly.

2. LED light source consumes less power

LED single tube power 0.03-0.06 watts, using DC drive, single tube driving voltage 1.5-3.5 volts. The current of 15-18 mA is fast and can be operated at high frequencies. Under the same lighting effect, the power consumption is one ten thousandth that of incandescent lamps and one half that of fluorescent tubes. Japan estimates that if used LEDs with twice the light efficiency than fluorescent lamps replace half of the incandescent and fluorescent lamps in Japan, saving 6 billion liters of crude oil each year, a fluorescent lamp with the same effect of more than 40 watts, and the power of each LED is only 18 watts .

3. LED light source has a long service life

Incandescent lamps, fluorescent lamps, and halogen lamps use electronic light field radiation to emit light, filaments are easy to burn, thermal deposition, and light attenuation. LED lamps are small in size, light in weight, and encapsulated in epoxy resin. They can withstand high mechanical shock and Vibration, not easy to break, the average life span is 3-5 hours, and the service life of LED lamps can reach 3-5 years, which can greatly reduce the maintenance costs of the lamps and avoid the pain of frequent lamp replacements.

4. Strong safety and reliability

Low heat, no heat radiation, cold light source, can be safely touched, can accurately control the light type and light angle, light color, no glare, no mercury, sodium and other substances that may endanger health.

5. LED light source is environmentally friendly

LEDs are all solid light emitters, impact-resistant and not easily broken, waste can be recycled, no pollution is reduced, and a large amount of harmful gases such as sulfur dioxide and nitrides, as well as carbon dioxide and other greenhouse gases are generated to improve people's living environment. It can be called "green lighting source."

There are currently three types of technology for producing white LEDs: one, using the three-primary color principle and three red, green, and blue ultra-high-brightness LEDs that can be produced into white at a ratio of 3: 1: 6 light intensity, and two using white, High InGan blue LED, the tube is always added with a little yttrium diamond pomegranate as the main phosphor, it can generate yellow-green light under the excitation of blue light, and this yellow-green light can be combined with the transmitted blue light to produce white light. Light LEDs use ultraviolet light to excite three primary color phosphors or other phosphors to produce multi-color mixed white light.

6. LED light source is more energy efficient

Of course, energy saving is the most important reason for us to consider using LEDs. Perhaps LEDs are more expensive than traditional light sources, but it takes one year's energy savings to recover the investment in light sources, thereby achieving a net energy saving period of several times per year in 4-9 years.

1. Beware of low-cost traps . The price of LED light sources varies greatly. The prices of LEDs of the same color and brightness can differ by several times. This gap is mainly reflected in the performance of LEDs such as reliability, light decay, and appearance. Low-priced LEDs have smaller chip sizes, rougher electrodes, poorer materials (fluorescent powder and glue), poor current resistance, temperature and humidity changes, fast light decay, and short lifespan, so blind pursuit of low prices may not pay more.
2. Recognize relevant standards . From a safety perspective, the product should meet relevant international and national standards. Since LED is a new product, China's national standards lag behind and only provide product qualification tests. Therefore, international safety certifications (such as GS, CE, UL, etc.) are the standards for measuring the quality of LED lights, and there are not many manufacturers with international safety certifications and national product quality certifications. It is necessary to carefully identify the authenticity of the certificate when purchasing. Products with international safety certification generally have higher prices.
3, the selection of constant current power LED lights , LED drive power resistors, capacitors, ICs and other components prices vary greatly, the entire power supply scheme and the rationality of the design of the circuit itself will directly affect the quality of the product. Some driving power supplies only have constant voltage and do not achieve constant current, and LED lamps must have constant current to better ensure quality and service life. Therefore, this point needs extra attention when purchasing, especially for high-power LED lights.

Fifty years ago, people had learned the basics of light produced by semiconductor materials. The first commercial

1) Excessive leakage current of the LED causes the PN junction to fail, making the LED lights not bright. This situation generally does not affect the work of other LED lights

2) The internal connection lead of the LED lamp is disconnected, causing the LED to pass through without current and causing a dead lamp. This situation will affect the normal operation of other LED lamps

The static electricity of the human body is also very damaging to the LED. Wear anti-static clothing when working, and wear an electrostatic ring. The electrostatic ring should be well grounded. There is a type of electrostatic ring that does not need to be grounded. The anti-static effect is not good. This kind of product, if the staff violates the operating regulations, they should receive the corresponding warning education, and also serve as a notice to others. The amount of static electricity on the human body is related to the different fabrics and clothes worn by people. When we undress in autumn and winter, it is easy to see the discharge between clothes. The voltage of this electrostatic discharge is three thousand volts.

Some companies use manual soldering and use a 40-watt ordinary soldering iron. The soldering temperature cannot be controlled. The soldering iron temperature is above 300-400 ° C. Excessively high soldering temperature will also cause dead lights. The expansion coefficient of LED leads at high temperatures is around 150 ° C. The expansion coefficient is several times higher, and the internal gold wire solder joints will be pulled apart due to excessive thermal expansion and contraction, resulting in a dead lamp phenomenon.

Prevent damage

The reason why LED has a very long life is only relative to the more suitable working environment. There are two main causes of damage to LED lighting: one is over-current shock, which means that the current applied to the LED exceeds the LED technical data manual. The maximum rated current includes over-voltage shock caused by over-voltage; the other is over-temperature damage. But how do we prevent LED lighting from being damaged in reality?

First, prevent electrical shock and transient overcurrent. Generally, the electrical shock occurs due to a large transient overcurrent, and the direct consequence is the damage to other parts near the welding line, such as sealing materials.

Secondly, do a good job in heat dissipation systems. At present, domestic technologies for LED heat dissipation systems are not very mature. Excessive heat will directly cause damage to the internal components of LED lighting, which will cause LED lighting failure.

With the development of social economy and the improvement of people's living standards, people's requirements for commercial space have become higher and higher. Lighting is one of the important parts of the store space, and the lighting design can attract and guide consumers' eyes.

Through the shaping of the space light environment, an attractive display space and display image are created, and a variety of lighting methods are used to display the theme image of the store, making people associate, evoke resonance with consumers, and establish emotional exchanges with consumers.

1.Food Store

Food stores are divided into counter-type and stand-type sales models by the differences in food placement. Different models use different lighting methods. Because the food itself is small in size and rich in color, its lighting intensity and color rendering requirements are high. Food stores generally consist of a sub-counter sales area, a cash register area and a passage area.

Recommended product configuration: counter sales area: counter sales area: cashier area: channel area:

2.West Point

West Point stores are mainly engaged in bread and cakes. The display requires high color rendering, emphasizing bright and fresh colors and other factors, and has higher requirements for lighting. In addition to meeting the key factors of the above display, it is also necessary to create a comfortable shopping environment. At the same time, regarding the dining area derived from the West Point store, the lighting should consider both the functionality and the dining and leisure atmosphere.

Recommended product configuration: Display area: Cash register area: Channel area: Dining area:

3.Communication shop

The terminal model of the communication industry is divided into two categories: one is a hypermarket, and the other is a specialty store, which is sold as a counter. Functionally divided into: aisle area, counter and sales area.

A single brand has both a sales function and a brand promotion and service function. It can be divided into sales area, entrance image area, experience area, and after-sales service area.