Jandy® JLUW24W100 Daylight White Pro-Series Nicheless LED Light w/ HydroCoolT & 100′ Cord 12V 24W uses an innovative, energy-efficient design that harnesses the cooling power of water to create a cooler running, longer lasting light. Designed to fit in a standard 1-1/2 return fitting, these lights are smaller to accommodate complex pool designs, and operate at lower wattages, while providing the same brilliant illumination as previous models.