LED Street Lighting because of low power consumption, high luminous efficiency, long life, energy saving and environmental protection and other characteristics, has gradually eliminated the traditional street lamps, a road lighting, "the main force." LED Street Lightings for a long time, and installed in the outdoors, causing sun and rain, so the quality of the lamp must pass. Otherwise, the damage to the lamp will pose a threat to road safety. Therefore, regardless of business, institutions or engineering companies in the procurement of LED Street Lightings need to be carefully discerned, to avoid falling into the procurement trap
LED Street Lighting procurement need to pay attention to the following matters:
Counterfeit chip, low-end chip
LED lighting is the core of the chip, directly determine the performance of the lamp! However, some poor manufacturers to use the customer's professional, from the cost of the above considerations, the use of low-cost chips, so that customers buy high prices of low-quality products caused by direct economy Loss, and LED lamps caused serious quality risks.
Configure the virtual standard, exaggerate the configuration parameters
Solar lights are also accompanied by the decline in the price of profits, the fierce competition has also led to a number of solar street lamp manufacturers began to cut corners of the product parameters, the number of solar panels, solar panels, battery capacity, and even solar road light pole with Material is in question. Of course, this is the customer again and again compared to the price, requiring low prices caused, but also with the practice of some manufacturers.
Poor cooling design, configuration is unreasonable
Thermal design, LED chip PN junction temperature increased by 10 degrees each, the life of semiconductor devices will be a multiple decline. As the LED solar LED Street Lighting brightness requirements, the use of the environment more demanding, if the heat solution is not good, will quickly lead to LED aging, stability decreased. In addition to unreasonable configuration often lead to the specific use of less than expected value.
Copper wire impersonate gold and controller problems
Many LED manufacturers trying to develop such as copper alloy, gold alloy silver alloy line, silver alloy wire to replace the expensive gold line. Although these alternatives are superior to gold wires in some properties, they are much worse in terms of chemical stability, such as silver and gold-clad silver alloy lines susceptible to sulfur / chlorine / bromide corrosion, and copper wires are easily oxidized and vulcanized. These alternative solutions make the bonding wire more susceptible to chemical corrosion, the reliability of the light source is reduced, the use of a long time, LED lamp beads are more likely to break the dead light.
Solar lights controller, the controller if the failure, testing and inspection process, there will be "the whole light off", "switch lights are not allowed", "part of the damage", "individual LED lamp beads dead light", " The whole light flashing virtual light "phenomenon.
Purchasing staff in the procurement link need to pay attention to the following questions:
▼ to detect
Procurement is the first light failure test report, which is a very important part. Tendering companies will provide different units of the light failure test report, and some provide their own self-test, there are some third-party testing, which inside the test report although the test results are good, the actual real light loss of large, We are known, so how can we see the real thing?
▼ LED Street Lighting structure
After the LED Street Lighting failure test this off, the structure is a big problem. This problem is rarely concerned in the industry, which is the actual use of street lamps caused by the decline of light one of the main reasons.
We all know that the national haze area is so big, it not only on the human body damage, but also caused the road lights decline, especially in the northern region, dust, fog, outdoor use for a short period of time, the entire street surface Covered with dust, the heat effect greatly reduced. This is also one of the main culprits that LED Street Lighting are not known to everyone.
According to this situation, the lamp design must be transparent up and down. Doubled the area of heat dissipation, because no street management department will clean up the radiator on time, in the long-term use can only rely on the rain rinse, the area will also be sufficient to stay due to the cause of pollution caused by effective cooling area reduction.
▼ heat dissipation
LED Street Lighting decay has a barrel effect, there is a short board is not OK, light failure troubled you so many years, and this problem is that you can do a good job of the lamp radiator light failure, not, we began to discuss The use of low-power chip shell-type package, high-power chip will not work, said the chip power does not heat out, not the case, COB package heat is more concentrated, through the aluminum bracket or copper bracket can solve the heat problem.
But the light failure is more difficult to control, because the radiator is not necessarily solve the problem of light source light failure, light source package there is a big misunderstanding, COB light source silicone is too thick, the silicone package should be thinner the better, Luminous surface heat, which is COB light source light failure control reasons.