Underwater lights for pool, lighting of ponds & water feature with SS316 rust-proof housing & IP68 ingress protection. Installing underwater spotlights lets you highlight a focal point in a pond, fountain, pool, or another underwater area. Spotlights focus their illumination on a single area. This makes underwater spotlights a great way to highlight a particular feature either underwater or directly above the water. Combining the underwater spotlights with other landscape lighting can deliver a well-lit property.