Strage battery inside the bas charged the power from solar cell at daytime and display panel is lighting by the LED at night Lighting of LED at sunset detected by the illuminance sensor.
Turning off the LED is controlled by the timer.
It is possible to correspond also to late-night bus service and auto off after the last bus.

Solar Panel Kind Mono crystalline
Output 70W
Efficiency 15.6%
Lighting Kind High illuminance LED
Power Consumption 15W
Strage Battry Capacity 35Ah
Not for sunshine 3 days
Cuicuit Controll Controlled by the timer.
Controlled by the illuminance sensor