The voltage of solar street lighting systems is usually 3.2V, 12V, and 24V direct current. What are the differences and challenges

faced by these different voltage systems in practical applications? Next, we will explore them one by one.

3.2V Solar Street Lighting System

Then, we turn to the 3.2V solar street lighting system. This voltage level solar street lighting system has its unique features in

practical applications. However, compared with 12V and 24V systems, does it face special challenges or advantages? We will

reveal the answers in the subsequent discussion.

3.2V Solar Street Lighting is gradually gaining more favor from manufacturers.These street lights adopt a lithium battery series

design, which not only reduces the cost of the entire solar street lighting system, but also faces the problem of shortened lithium

battery lifespan. To address this challenge, high-quality protection boards or controllers are usually selected to enhance the

durability of the lithium batteries.

12V Solar Street Lighting System

As the most widely used voltage system in the solar street lighting field, it is favored by manufacturers. This system is achieved

through two methods: one is using a 3-series-10-parallel voltage reduction controller, and the other is using a 10-series-3-parallel

voltage boosting controller. The 12V solar street lighting, with its moderate price, stable performance, and long service life, has

become an extremely cost-effective choice.

24V Solar Street Lighting System

It is usually composed of two solar panels and two sets of lithium batteries, with the panels and batteries connected in series.

Although this system also has high stability, compared with the 12V solar street lighting system, its cost performance is relatively

lower, often being more than double the price. Under normal circumstances, unless the customer has special requirements,

manufacturers usually do not directly recommend this 24V solar street lighting system.

Relying on years of industry cultivation and technology precipitation, Guangdong Guangyun Lighting Co., Ltd. is a

comprehensive high-tech lighting enterprise integrating product research and development, large-scale production, global

sales and professional after-sales. The company always adheres to the core business philosophy of "quality as the foundation

and customer as the center", and provides customers with high-quality photovoltaic lighting products and supporting

solutions with strict production standards and perfect service system. This paper systematically explains the professional

selection criteria of outdoor solar projection lights from five core dimensions.