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Solar streetlights are very important devices for many people. When we consider using solar streetlights, what often concerns everyone is how long they can last. The lifespan of solar streetlights cannot be calculated based solely on the lifespan of the light bulbs; it should also take into account the lifespan of all other components, such as the control system battery. Of course, the lifespan of solar streetlights is directly related to the battery’s lifespan.
Generally speaking, if it is a standard solar streetlight, the light bulb’s lifespan is typically over 50,000 hours, and the solar panel’s lifespan exceeds 20 years. If a controller is included, its lifespan is generally around 10 years, though it ultimately depends on the lifespan of the electronic components. The battery has a relatively long lifespan. Typically, the lifespan of solar streetlights is closely linked to the battery’s lifespan. For lead-acid batteries, their lifespan is usually about 2 to 4 years, while lithium batteries have a lifespan of 4 to 8 years, depending on the manufacturer’s materials used.
However, it can be observed that currently, most solar streetlights in actual use rely on lead-acid batteries, which means that the battery may need to be replaced every few years. In general, these solar streetlights can meet our practical needs and provide us with better assurance.
