Solar street lamps belong to off-grid photovoltaic lighting systems. They rely on photovoltaic modules to complete the

conversion of light energy into electrical energy and store energy in the storage unit. At night, the light source is driven to

achieve stable lighting. A set of well-configured and high-quality solar street lamps can have a system comprehensive

service life of over 10 years. The overall lifespan of the machine is determined by the durability characteristics of each

core component and the working environment.

High-efficiency monocrystalline silicon photovoltaic modules have a design life of 20–25 years, with controllable annual power

degradation, and can maintain a high power generation capacity for a long time. The LED light source follows the L70 light

degradation standard, with a rated lifespan of over 50,000 hours, having strong light emission stability and slow light degradation.

The accompanying MPPT intelligent charging and discharging controller has functions of overcharging, over-discharging,

overcurrent protection, and lightning protection, ensuring the safety and cycling of the storage battery. The lithium iron phosphate

storage battery is the weak link in the system lifespan. Under reasonable charging and discharging depth and suitable temperature

conditions, it can operate stably for 5–8 years and can be replaced separately when it expires, extending the overall system service

life. The hot-dip galvanized lamp pole and protective shell have excellent anti-corrosion and resistance to outdoor aging capabilities.

The entire system has core advantages such as independent power supply, no need to lay power lines from the power grid, zero

electricity charges during operation, low carbon and low energy consumption. The operation and maintenance costs are low,

effectively reducing municipal electricity load and carbon emissions. It has been widely applied in urban and rural roads, parks,

squares, new rural areas, and other lighting scenarios, and is the mainstream solution for outdoor green lighting.

Based on years of industry accumulation and technical expertise, Guangdong Guangyun Lighting Co., Ltd. is a compreh-

ensive high-tech lighting enterprise that integrates product research and development, large-scale production, global

sales, and professional after-sales services. The company always adheres to the core business philosophy of "quality first".

Centered on customers, it provides customers with high-quality photovoltaic lighting, photovoltaic fan products and

related supporting services, with strict quality standards and a complete after-sales service system.