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How does it work ?
The battery gets loaded during daytime with the electricity produced by the
solar panel (PV).
Nighttime is detected by measuring the voltage of the solar panel :
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Avoid any shadow on the solar panel (trees, houses, traffic signs…). Shadows will
considerably impact electricity production of the panel and hence reduce
recharging of the battery.
Avoid artificial light on the solar panel during nighttime. This could hinder
correct detection of sun fall by the panel and can, worst case, completely
disable switching on of the light.
