Calculating the operating time of solar outdoor street lamps is not a fixed value; it depends on the actual needs of the users, which is the most fundamental requirement. Generally, they are designed to operate for 10 to 14 hours each night, and the specific duration varies depending on the latitude. Of course, when batwing lens solar street lights are in operation, normal charging and discharging also affect the operating time. Therefore, factors such as the wattage of the light source, the capacity of the solar panel and the lithium battery need to be considered, as none of them can be omitted.
Now let’s take a look at how much impact the weather has on the system when estimating the operating time.
On a sunny day, the solar panel can absorb sunlight at maximum efficiency to convert it into electricity. On the one hand, it supplies the light source for the day’s use and consumes it, and on the other hand, it stores the excess electricity in the battery for use on the next day or during rainy days.
For example, for a 30W solar street light in the Philippines, with a local peak sunshine duration of 5.5 hours, assuming it operates for 12 hours each night and works at full power for 7.2 hours, is a 100W solar panel sufficient?
The estimation formula: Theoretical lighting time ≈ (Solar panel power × Local peak sunshine hours × System efficiency) ÷ Lamp power.
According to the formula, (100W * 5.5 * 0.8) / 30 = 14.67 hours, which means it can provide 30W solar street lights with full power for 2 rainy days. This indicates that the configuration is sufficient.
Currently, apart from split solar street lights, All in one solar street lights are very popular worldwide, with a major advantage being easy installation. They are also equipped with controllers and sensors, allowing them to reduce power by half during times of low pedestrian traffic or late at night to achieve energy conservation. At the same time, intelligent modes can also extend the lifespan of the same configuration of street lights.
Returning to the solar outdoor street lamps themselves, over time, dust accumulates on the surface of the photovoltaic panels, the wiring ages, and in winter when the temperature is low, the battery’s activity decreases. All these factors can also affect the actual lighting effect. Therefore, there are now solar street lamps on the market that have self-cleaning solar panels. The surface of the solar panel is equipped with a small scraper, and an electric motor is built-in. It can scrape the solar panel once every 8 hours to remove dust and ensure charging efficiency.
A mature solar street light system not only requires high quality for each component but also needs to handle good connections between various components, with each part interlocking and indispensable.
We are TX Solar, China batwing lens solar street lights and poles Manufacturer. We have been deeply involved in this industry for 18 years, with a professional team, advanced technology and excellent sales capabilities. If you are interested in batwing lens solar street lights or have any questions, please feel free to contact us !
Post time: Aug-13-2026
