Hidden in the LED street lights

As one of the most important lighting facilities in urban development, the quality of LED street lamp is the most important one. But now the market price of all kinds of LED lamps, the quality is uneven, many reasons is that in China market, manufacturers patent awareness is not strong, lack of innovation, industry price war led manufacturers continue to reduce costs in materials, technology and other aspects of the quality, to the LED street lamp has brought great influence, often see the street after a period of time the dark.

Replace the LED lamp mode is very complicated, this is because the LED lamp internal components of many, in addition to the light source (chip), other parts of the damage will lead to the chip is not bright, the scene is not immediately conclude that causes damage to LED street, LED street off for the detection of transported back to the factory. This is the LED street lamp outdoor height device, installation is difficult, maintenance is more difficult, for street managers, unstable product quality makes maintenance costs rise.

LED Street common tricky":

1 configuration virtual standard

LED Street hot is also accompanied by lower prices of profits, the fierce competition has led to many businesses began to cut corners in virtual standard product parameters, this is the customer repeatedly than the price, low price to the requirements, but also with a number of manufacturers of practice.

2 counterfeit chips

LED lamp is the core of the chip, directly determines the performance of lamps! However, some unscrupulous businessmen use client is not professional, consider from the cost, the use of low-cost chips, so that customers with high price to buy low quality products caused direct economic losses, and caused serious quality hidden trouble for LED lamps.

3 copper wire

Many LED manufacturers are trying to replace expensive gold wire such as copper alloy, gold silver alloy wire and silver alloy wire. Although these alternatives is superior in some characteristics of gold, but the chemical stability has a lot of difference, such as silver and gold silver alloy wire is easily affected by the sulfur / chloride / bromide corrosion, easy oxidation of sulfide copper. The package is similar to the water permeability of the silica gel sponge, these alternatives to bonding wire are more susceptible to chemical corrosion, reduce the reliability of light source, used for a long time, LED lamp is more likely to break dead lights.

4 light distribution system design is unreasonable

In optical design, if the design of light distribution system is unreasonable, the lighting effect is not ideal. In the test, there will be "light under the lamp", "under the lights", "zebra", "uneven illumination", "yellow circle" and so on.

5 poor thermal design

Heat dissipation design, LED chip PN junction temperature increased by 10 degrees per second, the life of semiconductor devices will be a multiple decline. Due to the high requirements of LED street lamp brightness, the use of the environment is relatively harsh, if the heat is not resolved, will quickly lead to LED aging, reduced stability.

6 power failure

The driving power supply, if there is fault, the process of testing and inspection, will appear "lights" and "damage" and "individual die LED lamp lights", "the whole virtual lights flashing bright" phenomenon.

7 Safety Failure

Security issues also deserve serious attention: no power leakage protection lamp; lamp ballast quality pass; circuit breaker without sensitivity check test, rated tripping current is too large; the metal cable sheath PE main line process is complex, low reliability; and the problem of low IP waterproof and dustproof.

8 lamps are harmful to the light source

LED light source is blackening of the major LED companies often encounter problems. Most of the materials need to influence the material life of the light source.

The emergence of the above problems, the performance of the LED street lamp, and even lead to the failure of the LED street lamp.

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