AQUANIQUE Lighted Waterfall LED Spillway, 12-Inch, Blue The 12" Blue LED Spillway is ideal for creating a beautiful waterfall in a pond, a retaining wall, or a disappearing water feature. The 12" Blue LED Spillway includes a 20 ft. power cord with a UL-listed transformer and an adaptor that fits 3/4 in. or 1 in. tubing. Its bright, long-lasting LED lights create an elegant nighttime effect. The LED Spillway is easy to install and maintenance-free. Connects to a pump outlet with 3/4 or 1 in. ID tubing