How to choose solar street lights and distinguish between them?

With the acceleration of my country's urbanization process, the acceleration of urban infrastructure construction, and the country's emphasis on the development and construction of new cities, the market demand for solar street light products has gradually expanded.

For urban lighting, traditional lighting equipment consumes huge energy and has huge energy waste. Solar street lights can reduce lighting power consumption and are an important way to save energy.

Relying on its technical advantages, solar street lights use solar panels to convert electricity into electricity for lighting, breaking the limitations of traditional street lights using city electricity, realizing self-sufficient lighting in cities and villages, and solving the problem of high electricity consumption and electricity costs. High troubles.

At present, there are more and more manufacturers of solar street lights, and the market is mixed. How to choose solar street lights and distinguish between them? It can be selected from the following 4 aspects:

1) Solar panels: commonly used solar panels are monocrystalline silicon and polycrystalline silicon. Generally speaking, the conversion rate of polycrystalline silicon is usually 14%-19%, while the conversion rate of monocrystalline silicon can reach 17%-23%. .

2) Battery: A good solar street light must ensure sufficient lighting time and brightness. To achieve this, the battery requirements are naturally not low. At present, solar street lights are generally lithium batteries.

3) Controller: There are two types of controllers: PWM and MPPT, which can reduce the overall brightness and save energy during the time when cars are scarce. Set reasonable power in different time periods to extend the lighting time and battery life.

4) Light source: The quality of LED light source will directly affect the use of solar street lights. Ordinary LEDs have always had heat dissipation problems, and the light efficiency is low, the light decay is relatively fast, and the light source life is short.