The on/off mode button is on the back of the light body and can be pressed to illuminate
![install](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)
NOTE:
Please do not install upside down on the top and bottom, when installing, please follow the installation direction with the white motion sensor facing down. This solar light is IP65 waterproof rated, but there is a ventilation hole at the bottom that will let water in if installed upside down!!!