If you work in the solar business for years already, you may have experienced many faults with solar products before realizing all these related points. But if you are new entering, this article will give you much help.
- Wattage
The wattage you see is not the actual wattage, because the wattage on the market is false. Low wattages in the market range from a few watts to tens of watts, and high wattages range from hundreds of kilowatts or even tens of thousands of watts. Consumers generally believe that high wattages are brighter than low wattages. Whether it is domestic Chinese sellers or foreign sellers, they are more inclined to mark the wattage higher and higher. If there is a unified standard in the solar street light industry, it is true that the higher the wattage, the brighter the product. However, the statement “higher wattage is brighter” is not entirely true.
To understand the above statement, we must first understand what wattage we often say refers to, usually refers to the wattage of the lamp beads. Common lamp beads are 5730 (can do 0.5w), 2835 (can do 0.2/0.5/1w), 3030 (can do 0.2/0.5/1w) and so on. To reduce customer doubts, sellers sometimes mark the wattage according to the number of lamp beads, for example:
For a set of solar lights with 1000 2835 lamp beads, some sellers mark 500W, some mark 1000W, or even higher. Of course, some sellers mark it at will. Therefore, when purchasing a solar lamp, it is not comprehensive to look at the wattage only, but also to consider the power of the lamp bead and the parameters of other components of the product.
- Battery
The battery capacity you see is not the actual capacity, because most solar street lights use second-hand batteries. Manufacturers purchase most of these second-hand batteries from new energy vehicle battery recyclers. Due to the inconsistent use environment and use time of new energy vehicles, there are differences in the capacity and cycle life of recovered batteries. So, what is the method to identify the quality of the battery? There are two common methods at present:
First, confirm whether the manufacturer has a battery capacity separation process. The battery capacity segment and tolerance play a decisive role in the working time and service life of the product. The battery capacity division process can screen out batteries with different capacity segments to a certain extent and avoid encountering inferior batteries.
Second, product testing, that is, sample testing before batch ordering products, and actual measurement of the product’s battery capacity, charging and discharging time, and product brightness. The second is the most practical way for the customer to have control and insight into the product.
- Light pole
The height of the common solar street light pole is 6 meters. Under normal circumstances, the upper diameter of 60mm and the lower diameter of 140mm can be used. The thickness of the pole is 2.75mm, the flange edge is 260mm, and the flange thickness is 10mm. However, many 6-meter light poles on the market are less than 2.5mm thick, some are 1.7mm, and even 1.5 meters. These light poles are called “sunflower poles”, which are very fragile. There is also a type of light pole on the market called an equal diameter pole. The equal diameter pole is suitable for installation heights below 4 meters, and above 4 meters, it is recommended to use taper poles with suitable thickness.
In addition, the production process of the light pole is different, which also has a great impact on the performance of the product. Generally, the material of the light pole is Q235 steel. After being processed and formed, the hot-dip galvanizing process is used to protect the light pole, so that the light pole will not rust for a long time in the outdoor environment. In contrast, although the cold galvanizing process is cheaper, its anti-corrosion effect is much lower than that of hot-dip galvanizing, so cold galvanizing is mostly used for indoor workpieces. The highway guardrails and transmission towers that we commonly see are all hot-dips galvanized, and these devices will not rust for ten or even twenty or thirty years.
In addition to the wattage, batteries, and light poles mentioned above, solar panels, controllers, etc. also have a certain impact on the selection of high-quality solar products. All in all, since there is no unified standard in the solar lamp market, buyers should consider many aspects when choosing solar street lamps. At the same time, they can also consider cooperating with professional trading companies, because sometimes the number of factories that traders have contacted will be more. more, understand the supply market better and communicate more smoothly.