The Color AquaLuminator (CAL) combines Pentair's patented LED technology and patented Hydro-Optic technology to create this revolutionary color-changing light and return fitting combination for aboveground pools. Exclusive LED technology is used to illuminate aboveground pools with a revolutionary color spectrum that will set the evening's mood. This light fits the existing water return hole pre-punched by most aboveground pool manufacturers and can be installed on new or existing pools.