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Walking down the street at night, have you ever experienced the sudden brightness of the originally dark road? You might think it’s due to a timed control system, but that’s not the case.
The control methods of solar streetlights are not limited to just timed control; they also include light control, and a combination of both. Below, let’s clarify some of the common control methods of solar streetlights.
1. Light Control On – Light Control Off
Principle: During the day, sunlight hits the surface of the solar panels, generating electricity through the photovoltaic effect, which charges the battery via the controller. As the light diminishes, the voltage produced by the solar panels decreases continuously. When the voltage drops below the starting voltage set by the controller, the controller turns on the load. As the light gradually increases, once the voltage generated by the solar panels reaches the shutdown voltage set by the controller, the controller cuts off the load.
2. Light Control On – Timed Control Off
Principle: During the day, sunlight hits the surface of the solar panels, generating electricity through the photovoltaic effect, which charges the battery via the controller. As the light diminishes, the voltage produced by the solar panels decreases continuously. When the voltage drops below the starting voltage set by the controller, the controller turns on the load. When the load’s working time reaches the pre-set time set by the controller, the controller cuts off the load, stopping its operation.
3. Timed Control On – Timed Control Off
Principle: When sunlight hits the surface of the solar panels, electricity is generated through the photovoltaic effect, which charges the battery via the controller. When the time reaches the set time of the controller, the controller starts the load operation.
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