YUANNENGJI For urban lighting, traditional lighting equipment consumes a lot of energy and wastes a lot of energy, while solar street lights can reduce lighting electricity consumption and are an important way to save energy.
With its technical advantages, solar street lights use solar panels to convert into electrical energy for lighting, breaking the limitation of traditional street lights using city electricity, realizing self-sufficient lighting in cities and villages, and solving the problems of high electricity consumption and high electricity bills.
Derzeit, there are more and more solar street light manufacturers, and the market is mixed. How to choose and buy and distinguish good from bad? You can select from the following 4 aspects:
1) Solar panels:
Commonly used panels are monocrystalline silicon and polycrystalline silicon. Allgemein gesprochen, the conversion rate of polycrystalline silicon is generally 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 requirements for batteries are naturally not low. Derzeit, solar street lights are generally lithium batteries.
3) Controller:
There are two types of controllers: PWM and MPPT. In periods with few cars and people, the overall brightness can be reduced to save energy. By setting the power reasonably in different time periods, the lighting time and battery life can be extended.
4) Lichtquelle:
The quality of LED light source will directly affect the use effect of solar street lights. Ordinary LEDs have always had problems with heat dissipation, low light efficiency, fast light decay, and short light source life.