The Hydro-Optic technology creates this revolutionary halogen quartz light and water flow return fitting combination. Fits the existing water return hole pre-punched by most above ground pool manufacturers and can be installed on new or millions of existing pools! Specially designed flow director creates less flow restriction and better flow direction than a normal water return fitting, enhancing the circulation for a cleaner pol. Features Advanced bulb design uses 30% less energy than a 50-watt halogen bulb Quick and easy install in 5 minutes 200% brighter than standard lighting Snap-on mood setting color lenses included Optional fountain attachment simply snaps on to add another dimension in fun and enjoyment Pressure cleaner adapter 25' plug-in cord UL listed Material s plastic/metal