Selfsustaining illumination: Solarpowered design charges by day to provide reliable nighttime lighting for the pool. No dependence on electricity or frequent battery changes, using advanced solar tech to maintain consistent illumination. Multicolor illumination: Seven smooth gradient color transitions driven by a smart LED chip. Produces dynamic light patterns on water surfaces or walls and creates vibrant underwater projections for an inviting ambiance. Intelligent design: Ambient light sensing enables automatic activation at sunset. The system automatically modulates brightness to balance visibility with energy savings, with no user input required. Secure performance: Built with advanced sealing to be waterproof and dustproof for stable underwater illumination. Designed to withstand longterm submersion without leakage while floating on the pool surface. Practical use scenarios Evening pool gatherings: Floating lights provide decorative, lowmaintenance lighting around the pool edge and underwater without wiring, enhancing safety and mood for family or friends. Outdoor relaxation and entertaining: Place the lights to illuminate pool walls or nearby water features, casting color patterns that complement outdoor seating areas and party atmospheres. Quick setup for events: With solar charging during the day, the lights automatically illuminate at dusk, offering hassle ambient lighting for weddings, camping, or backyard celebrations without electrical work.