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Usually, the advantages of solar street lights are introduced, such as energy conservation, environmental protection, electricity cost savings, and convenient construction. However, there is a lack of introduction to the shortcomings in the development process of solar street lights. In addition, in order to cover up the superficial summary of the problems in the current development process of solar street lights, please refer to Taiyang lamp users and businesses for correction. Now, let's learn about the disadvantages of solar street lights together!
As the main light source of solar street lights, LED lamps mainly have issues with LED chip quality, heat dissipation, light distribution, packaging, power drive, and electronic component lifespan. The main impacts on solar street light systems include:
1) The damaged solar street light needs to be replaced as a whole: on-site maintenance is difficult, unlike traditional light source replacement which is easy to maintain.
2) The heat dissipation problem of the solar street light system light source system: LED chips emit a large amount of heat while emitting light, and the light efficiency of LEDs decreases with the increase of junction temperature. Currently, for every 20% increase in junction temperature, the light efficiency decreases by about 5%. The lifespan and light attenuation of LED chips also have a significant impact. Therefore, the heat dissipation of the light source part needs to be considered. Currently, the heat dissipation methods of LED street lights mainly include natural convection heat dissipation, forced heat dissipation by installing fans, heat pipe and circuit heat pipe heat dissipation, etc. The forced cooling method of installing fans has a complex system and low reliability, and the cost of heat pipe and loop heat pipe cooling methods is high. At present, the power of solar street lamp systems is generally not high. Solar street lamps have the advantages of outdoor night use, heat dissipation surface located on the upper side surface, and limited body size, which are conducive to natural convection heat dissipation of the air. Currently, natural convection heat dissipation is widely chosen. At present, many manufacturers recommend solar lamp designs to customers as modifications to the lamp head. Due to the fact that the chip is enclosed within the lamp housing, there is a major problem that has a very adverse impact on the heat dissipation of the light source. When deciding on the shape of the lamp casing, please make sure to convey this consideration to the customer.
3) The problem of solar street light distribution: LED lights are emitting, and there are several LED chips emitting light at different points. There are many light sources, and a secondary distribution system needs to be installed. There is still a long way to go in terms of the rationality and scientific aspects of light distribution.
4) The relationship between the configuration and price of solar street light systems. Currently, there is no complete national unified standard for solar street light systems in the country. Each manufacturer produces their own products according to their own standards, which not only cannot be exchanged and used interchangeably, but also bad enterprises will squeeze out the concept and carry out secondary charging
5) The confusion between the lifespan of solar street light systems and LED light sources deceives consumers. Currently, the lifespan of LED chips has reached 50000 hours, with slightly better ones exceeding 100000 hours. The solar street light system also includes components such as batteries, solar street light controllers, poles, and solar panels, each with different lifespans. The most important aspect is that the lifespan of batteries and solar panels is currently more than 3 years, while those with poor quality cannot reach it, which will increase the cost of using the system for customers.
The above introduction is about the disadvantages of solar street lights. If you need to learn more, please feel free to contact us at any time!
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