Q1Why is the light not working? A: S1, Please check the solar panel has a protective film, before the first use, please tear off the protective film of the solar panel. S2, Please totally cover the solar panel or put lights upside down and press the on/off button to see if lights light up, if not, press again! Lights should work and then install them in your favorite places. Q2Why doesn't the light turn on when I leave it outside after charging? A: The solar copper wire light comes with a light source sensor, which will automatically dim or even go out when the solar light is close to a strong light source. Tips: Do not place the solar light string in the location of strong light sources such as street lights.