When do solar lighs turn on,How do solar street lamps automatically illuminate at night?

Generally, the solar lamp will not light up in the daytime.

The solar lamp is in an absorption state in the daytime. It will start to light up when the light is dark at night and meets the requirements of the solar lamp.

The solar panel of the solar street lamp absorbs solar energy, converts it into electric energy, stores it in the charging device, and releases it at night. Many outdoor solar street lamps get a complete timer or photosensitive device to let them automatically emit light in the dark.

If the panel of the solar lamp is covered, such as the panel is covered by dust, or the panel is covered by snowflakes in snowy weather, then the solar lamp will not work normally, and the output voltage of the solar lamp will become low. At the set value, the solar lamp will glow in the daytime.
LIGHT MODE - PIR Sensor

1. When the motion detected, the lamp will shift to 100% brightness automactically.

2. The lamp stay on with 30% brightless .when no motion

LIGHT MODE - Time Control

Total Time: 12h，100% Brightness，50% Brightness，30% Brightness，20% Brightness

1. The lamp will stay on according to above metioned hours and lighting percentage (12H).
2. It will shift and turn on/off automactically.

Remark:
Light mode and brightness can be customized.

The solar lamp converts the absorbed solar energy into electric energy. When the light is strong, the output light will be lower. If the voltage of the solar lamp is lower than the set value, the street lamp will be turned on. If the voltage is higher than the set value, the street lamp will be turned off