The Intex LED light uses magnetic technology to create a light system that safely generates low voltage current through the pools sidewall to a powerful LED light inside the pool. The advanced, energy efficient LED light delivers more brightness to your pool than a conventional 50-watt halogen pool light. The LED Pool-Wall Light is the ultimate in flexibility and can be attached to any sidewall in any location. It's easily moved to different parts of the pool for different lighting effects. If the inner light unit becomes separated for the outer power source, it floats to the surface for easy retrieval.