There is no doubt about the broad market prospects of LED products, especially in the field of lighting. If LED light sources are widely used in the field of lighting, it will be a revolution in the history of human lighting. However, it is still not widely promoted due to factors such as technology. Nowadays, there are many LED products used in the field of lighting and lighting, such as LED guardrail lights, LED lawn lights, LED spot lights, LED underwater lights, LED underground lights, and so on.
The reason why the application is more and more extensive and the advantages of the LED light source itself is inseparable. Regarding the advantages of LED light source energy saving, long life, no radiation (green light source), we should all know more about it. Here are some questions related to LED products.
DC power supply should be used. Some manufacturers use the "resistance and capacitance reduction" method to supply power to LED products in order to reduce product cost, which will directly affect the life of LED products. Using a dedicated switching power supply (preferably a constant current source) to power the LED products will not affect the life of the product, but the product cost is relatively high.
Anti-static measures should be taken. LED products should adopt certain anti-static measures in the process of processing and production. For example, the workbench should be grounded, workers should wear anti-static clothing, anti-static ring, and anti-static gloves, etc. It can be installed with anti-static ion fan, and also ensure that the humidity in the workshop is about 65%, so as to prevent the air from being too dry to generate static electricity, especially the green LED is relatively easy to be damaged by static electricity. In addition, the antistatic ability of LEDs of different quality grades is also different, and the antistatic ability of LEDs with higher quality grades is stronger.
It should be noted that the increase of temperature will make the internal resistance of the LED become smaller. When the external ambient temperature rises, the internal resistance of the LED light source will decrease. If the power supply is used, the operating current of the LED will increase, and when it exceeds its rated working current. Will affect the service life of LED products, and will seriously cause the LED light source to "burn out". Therefore, it is best to use a constant current source to ensure that the operating current of the LED is not affected by the external temperature.
LED products are sealed regardless of the LED products, as long as they are used outdoors, they are faced with waterproof and moisture-proof sealing problems. If not handled well, it will directly affect the service life of LED products. There are a small number of manufacturers that require high quality products to seal LED products by using traditional epoxy "watering" methods. This method is cumbersome to operate, for larger LED products (such as LED guardrail lights). Not very suitable, it will also cause the weight of the product to increase.
Control technology of LED guardrail lights At present, the most widely used control technology for LED guardrail lights is the "serial communication" method (mainly based on DXM512 protocol). The advantage is that each guardrail lamp has no specific "code", and each branch can be exchanged freely for production and engineering installation. But the biggest drawback is that once there is a damage, it will directly affect all the guardrail lights behind it. Just like a car driving on a single-lane road, once a car is "broken down", it will cause all the cars behind it to fail. normal operation. For the fence lamp project of hundreds or even several kilometers, due to external factors and the quality of the product itself, it is difficult to ensure that each guardrail lamp does not have any problems, so it is easy to cause "traffic congestion".
In addition, the quality of LED light sources on the market is very different. The good quality LED light source not only has high brightness, but also low light decay and strong antistatic ability, which determines its long service life, but its price is cheaper. The LED light source is several times higher. We will often see some LED lighting projects, which are really beautiful at first, but they will soon be "completed" and some projects will not be able to work. Therefore, manufacturers and users should not "kill" in the price. Use good quality LED light source, take effective technical measures to ensure the quality of LED products is the way out.
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