Instructions say there is a “manual mode” by touching the sensor for a second but that only keeps the light on. It doesn’t prevent the light from auto turning on every time you get near it. So unless you have a dedicated makeup desk it’ll be turning on every time you wash your hands if it’s on your bathroom vanity. Why can’t it just have an on/off button? Well it does have an on/off button but it’s on the bottom so you have to pick it up and switch it. Dumb.