How To Select Right LED Solar Street Light?

More and more people get familiar about the led solar street light in these days. The installation of led solar powered street lights is simple and does not require the same labor as traditional street lights, and can reduce the manpower and material resources of installing street lights. LED solar street lights provide lighting without worrying about power failure. All of its electrical energy comes from clean and pollution-free solar resources. It is safe and stable, and it is not prone to accidents such as electric shock and fire. The led solar street lamp is composed of multiple accessories, and the capacity of each accessory must be adapted to each other, so how should the led solar powered street light be configured? When designing solar street lights with motion sensor, be sure to clarify the lighting time of the lamps. The local sunshine hours and the number of consecutive cloudy and rainy days. When configuring each accessory of the led solar street light,it must be analyzed in detail according to the customer's lighting requirements and the specific problems of the local climatic conditions.

1. LED solar street light battery panel

The main function of solar panels is to convert solar energy into electricity, which are generally divided into three types, monocrystalline silicon, polycrystalline silicon, and amorphous silicon. Among them, the parameters of monocrystalline silicon solar panels are relatively stable, which is suitable for use in places where there are more cloudy and rainy days and the sun is not so abundant compared to the equatorial region. Moreover, the power conversion rate of monocrystalline silicon solar panels is the highest, at about 20%. The production process of polycrystalline silicon solar panels is relatively simple, and the price is lower than that of monocrystalline solar panels. It is suitable for use in sunny places and has a power conversion rate of about 16%. Customers can choose the solar panel that suits them according to their own budget and the installation area of the street lamp, either the most expensive or the best. The working voltage of the solar panel needs to be 1.5 times of the battery voltage, so as to keep the battery charging normally. For example, to charge a 6V battery requires 8-9V solar panels. The output power of solar panels is under standard sunlight conditions. At different times and in different locations, even the same solar panel has different output power. Solar panels are generally composed of multiple solar cells connected in series. We should pay attention to whether there are obvious cutting marks on the surface of the panels, whether there are any drops of silica gel, and whether the surface is flat. Some unscrupulous manufacturers will recycle broken solar panels to splice them into complete panels to reduce costs.

2. led solar street light battery

The energy of led solar street lights is unstable, with strong energy during the day and low energy at night. The led solar poweredf street lights need to work at night, so solar street light systems with motion sensors need to be equipped with batteries. The battery can store the computer converted during the day to meet the electricity needs at night, and the lighting on continuous rainy days should also be considered. Therefore, the capacity of the battery should match the solar panel, light source, and lighting time. The capacity of the battery is too small to meet the lighting needs, and the capacity is too large to easily affect the service life, and colleagues also increase the cost. Currently on the market, batteries for led solar street lamps include gel batteries, lead-acid batteries, and lithium batteries. In terms of price and performance, it is recommended that customers choose lithium iron phosphate batteries. Lithium iron phosphate battery has many advantages, environmental protection, long service life, low self-discharge rate, and more discharge, but the price will be relatively more expensive.

3. Selection of solar street light source

The choice of light source for solar street lighting is very important. For unprofessional customers, the quality inspection of the light source is the most direct. The lighting effect of led solar street lights can be distinguished by the naked eye. At this stage, there are few dedicated light sources for led solar street lights. In order to reduce damage, DC light sources should be selected as much as possible. There are many factors that affect the power of solar street light sources, such as the height of the light pole, the width of the road, the lighting needs of customers, and so on. The power of led street lights ranges from tens of watts to hundreds of watts. Customers should choose solar power street lamps with appropriate power according to their actual needs. If the lighting requirements are relatively high, choose LED high-power street lights; otherwise, choose low-power street lights. For example, if a rural road is six meters wide and led solar street lights are installed on one side, you can choose 6 meters 30W solar street lights, which can fully meet the lighting needs. For LED chips, it is recommended to choose well-known brands imported from abroad. The LED chips of well-known brands have good energy-saving effects, low light decay, and no glare. If the customer has no idea about the power of solar street light, it is recommended to order a sample first, and then order it in bulk after installation, if it feels suitable.

4. led solar street light controller

The controller is the core of the solar powered street lamps. When there is light, the controller is responsible for controlling the solar panel to charge the battery. When the controller detects that the light conditions are not good and the light-on condition is reached, it will light up the load light source. In order to ensure the normal operation of the entire solar street lighting system, the controller should ensure that the battery components will not be overcharged or overdischarged under any conditions and have time control , light control, temperature compensation and lightning protection at the same time. In addition, the controller is responsible for monitoring the charging status of the battery module, managing the charging process including the opening and closing of the load, so that the battery components can make full use of energy and prolong the service life. At the same time, the output voltage of the controller and the light source should be the same.