Use these Professional 20 watt low voltage underwater lights to illuminate ponds, waterfalls, rock column fountains and other water features such as disappearing waterfalls. Nothing impacts a landscape like a well lit waterscape. These lights are build sturdy for longevity. Most of the economical underwater lights tend to burn up and crack if they are not completely submerged underwater. These lights do not need to be completely submerged underwater so they work great in disappearing water features or can be positioned behind a waterfall for a more dramatic visual effect. Each light comes with a 30' cord lead and a one year warranty on the fixture. These underwater lights are easy to install as an addition to your existing lighting system. Transformer not included.