How to choose a good solar floodlight
1. Consider the Installation Environment of The Solar Flood Light
When purchasing solar flood lights, be sure to combine the lighting conditions of the scene to be used, the installation height and so on. Generally speaking, high-latitude areas should choose to configure higher solar floodlights, and low-latitude areas can choose suitable solar floodlights to save budget.
The energy of the photovoltaic power generation system comes from sunlight, and the same is true for solar flood lights. The sun illuminates the earth year after year and day after day according to a certain law. Generally speaking, solar radiation changes with the seasons, with the highest in summer and lowest in winter.
However, the weather conditions have changes in sunny, cloudy, rainy, and foggy, so the available energy provided by sunlight changes with time and climate. The value of solar radiation varies from place to place, even at different times in the same area.
Because the household solar photovoltaic power system is used in a dispersed manner, it is often impossible to obtain and use precise meteorological data for the specific installation site. Therefore, usually for a large area of ??use, refer to the radiation situation over the years as the basis for design.
It should be pointed out that the solar radiation in a year changes, and the radiation value of the worst month of the whole year cannot be used, otherwise the designed system will inevitably be too large, resulting in waste of costs; nor can the best time of sunshine Consider the supply and demand balance of the system. Such a system will be small. As a result, the system has a long time to generate electricity and cannot meet the demand for electricity.
2. Choose High Configuration Solar Flood Light
When the solar flood light is designed and configured, the battery panel power is small and the battery is not fully charged. The performance is normal at the beginning, but after a few rainy days, the light begins to dim, and it is completely dark in less than a year. More common. Therefore, when we configure the battery board, the selected power must be appropriate.
When the design and configuration of the solar flood light is configured, the battery capacity is too small, or the setting of the solar flood light controller is not in line with the actual local conditions, resulting in a significant decrease in the measurement after more than 3 days of cloudy and rainy days. In this case, there are many cloudy and rainy days. Problems are prone to occur during the period, and other times are normal. However, if the number of local rainy days often exceeds the setting of the controller, it will bring a huge burden to the battery and cause the loss of aging and early life reduction of the battery. Therefore, when setting up the controller, we must carefully and accurately consider the number of local cloudy and rainy days.
If the LED lamp head of the solar floodlight uses a high power, it may cause the battery to be over-discharged and prematurely age. If the power is low, the brightness is not enough and unnecessary cost waste is caused. This situation is relatively rare. Therefore, when we choose the LED lamp head of the solar flood light, we must carefully choose its power.
In terms of the configuration of solar flood light, we must first understand the light coefficient of this area, road width and street lamp height, etc., choose the height of the lamp pole and the brightness of the lamp head to be suitable, and the power of each time period is the same as this area. The number of cloudy and rainy days should be suitable for the capacity of the battery, and the power of the battery panel should be suitable for the storage capacity of the maintenance-free battery.
3. Pay Attention to Optical Parameters of Solar Flood Light
At present, the market of solar LED floodlights is chaotic, and many of them stay on the idea of ??comparing configuration and power. However, with the advancement of technology, we need to redefine our light source. We can clearly find that light bulbs were still used in rural areas more than 10 years ago. A 100W bulb was used to illuminate a room. At the back, we used energy-saving lamps. 30-40W can illuminate the entire room. Finally, LED light sources were developed. -15W can illuminate the entire room, even brighter. The same brightness or higher, but the power is getting smaller and smaller, the smaller the power, the more energy saving.
In the market, due to the lack of understanding of the technology of the solar flood light industry, users only have a general understanding of some simple mainstream configurations in the market, such as: how many watts of solar panels need to be equipped, how much capacity is required for batteries, and how many light beads are required. Therefore, the brightness of the lamp can only be judged by these not so realistic parameters. This has actually fallen into a misunderstanding, these parameters are only superficial, we need to understand the real needs of users. What is the purpose of users buying lights? What is the original performance of the lamp? After all, the end point falls on the ¡°lighting¡±. The user buys the lamp for lighting, and the original performance of the lamp is also for lighting.
Based on this point, we thought deeply and got an answer. What users buy is not parameters, configuration, or power. What users buy is light. Only the total amount of light emitted by this solar floodlight and the amount of light. Quality is our initial demand for solar floodlights.