Pentair 77118100 Stainless Steel AquaLight Halogen Quartz Light 120-Volt 100-Watt, 50-Feet Cord Halogen-Quartz Lamp With Stainless Steel Housing Prismatic Tempered Glass Lens Low Water Cutoff and All Pentair UL Listed underwater lights are certified for use in freshwater with up to 6,000 ppm salinity. Easy Service Stainless Steel Clamp Plastic Snap-On Face Rings And Colored Lenses Available For Purchase Separately