How to Identify Quality of Solar Power Street Lamp?

Solar power street lamp is a high tech lightingproduct, which convert the solar energy into electricity to power the street lamp. It's a green, energy-saving product and can bring long-term benefits. As this street lamp develops, more and more people join in this huge market. Some inferior solar power street lamp manufacturers use bad materials to cheat customers. You may find that the solar power street lamps price differ a lot with the same solar panel or battery. In fact, the parameters that they told you may be not correct. Solar power street lamp composed of solar panel, battery, controller, light source, etc. Quality of each part will affect the whole street light system. How to identify the quality of solar power street lamp? We can analyze the quality of the street lamp from these components. We will share the methods in this article, hoping to help you.

1. Battery

Battery is a very important part of solar street lights. Commonly used batteries on the market include lead-acid batteries and lithium batteries. Compared with traditional lead-acid batteries. The lithium battery is pollution-free, has a long lifespan, and has many charge and discharge times. For example, with the same capacity, the number of charging and discharging of a lead-acid battery is 400 times, while a lithium battery can reach about 1,000 times, which is nearly three times that of a lead-acid battery. Lithium batteries are currently widely used in solar street lights. Except for this , battery capacity matters a lot. Some inferior manufacturers will cheat on the battery capacity.  Battery capacity will affect the lighting efficiency of the solar power street lamp. If battery capacity can't meet the requirement, the street lamp can't support lighting in the required consecutive rainy days..

2. Light source

Solar power street lamp sources include energy-saving lamps, sodium lamps, LED lamps, and induction lamps. LED light sources are currently the most popular. Because of its high luminous efficiency and long service life. Moreover, the LED is powered by low voltage, which is easy to cooperate with solar power generation. The uniformity of the LED light source on the light irradiation surface is controllable, which can make the illumination more uniform. To distinguish the quality of the LED light source, we can check the heat dissipation performance of the lamp. If the heat dissipation of the lamps is not done well, the service life of the street lamps will be affected. Identify the chip of the LED lamp, the luminous body of the LED is the chip, and the price of different chips is different. Reliable solar power street lamp manufacturers generally use high-quality branded chips. The colloid of ordinary LEDs is generally epoxy resin, and LEDs with anti-ultraviolet and fire retardants are more expensive. High-quality outdoor LED lighting should be anti-ultraviolet and fireproof.

3. Controller

The solar controller is also called the charge and discharge controller, which coordinates the work of solar panels, storage batteries, and loads. The controller is the core component of the solar power street lamp. If there is a problem, the whole street light will not work properly, and it may even cause damage to the battery. If it causes overheating, it will also cause a fire. In order to reduce costs, many controllers do not consider heat dissipation. In this way, when the load current or the charging current is large, the heat increases and the service life will be greatly reduced. So it is very important to choose a controller with good heat dissipation function. In addition, the waterproof and moisture-proof performance of the controller plays a significant role. If the street lamp is installed in a coastal area, the controller will be easily corroded. The temperature compensation function is also very important. If the controller does not have a temperature compensation function, in the high and low temperature environment, the voltage error that the controller monitors to the battery at any time will be very large. It will appear that the battery is not fully charged in the low temperature environment, and the high temperature environment is overcharged.

4. Solar panel

Solar panels are the core material of photovoltaic systems. The quality of solar panels on the market is also uneven. How should the quality of solar panels be distinguished?

• Check whether the silica gel is evenly distributed around the back and whether it penetrates tightly into the gap between the backplane and the frame.

• Carefully observe whether there is any leakage in the string welding of the battery slices. At the same time, it also depends on whether the cell arrangement is regular.

• Look at the quality of the pressure on the back, and see if there are any irregularities, such as bubbles, wrinkles, etc., after the pressure is applied.

• Each of the cells on the battery is complete, and is made by integral cutting. However, many irregular manufacturers on the market use spliced cells to form seemingly complete cells for welding. When we observe, see if there are any traces of cutting. The spliced cells are easy to be disconnected again later, which affects the use of the entire cell board.

• The tempered glass surface of the battery panel should be smooth and free of foreign matter. Foreign matter will affect the power generation efficiency.

5. Warranty and service

Although solar power street lamp is a project that can bring long-term benefits, the initial investment is still expensive. Before the formal project confirmation, we can purchase samples from the manufacturer first, and we can try them after receiving the samples. In this way, you can have a full understanding of the quality of the lamps. Reliable solar power street lamp manufacturer will provide thoughtful after sales service. The warranty period of solar power street lamp is usually 3 years. Although, solar power street lamp needs almost no maintenance. Reliable manufacturers are always already to help when you are in need.