NOTE:
MAKE SURE the switch is correctly in the "ON" position, check by covering the solar panel with your hands,see if light turns on automatically.
Install the solar product correctly where it can get direct sunlight.
Leave the switch to "ON" position.
Select an outdoor location which AWAY FROM OTHER LIGHT SOURCES AT NIGHT, such as street lights.Or It may not turn on automatically at night. The light sensor is very sensitive and make sure the solar panel is not expose in light.
Duration of light depends on solar products level of sunlight exposure, geographical locations, weather conditions and the length of daytime.