These high-quality, stainless steel ProEco LED Outdoor Light Rings are programmable and can be used with the ProEco remote control light setup (see below for link). Both models are IP68 rated for underwater use. This light does not come ready-to-use. Power supply and remote control are not included. Measures 6.25" diameter x 3.25" high, with center opening of 1.5" (38mm). Comes with 2 year warranty. Nozzle pictured as example, not included.