NEVER NEEDS BATTERIES. COMPLETELY RUNS ON SOLAR POWER. Have more fun with your pool care. The Color-Changing Pool Chlorinator helps maintain your pool with an added bonus — at night it becomes an eye-pleasing pool decoration. There’s nothing to plug in or charge, and no disposable batteries to buy. A solar panel collects the sun’s energy in the daytime and charges a built-in rechargeable battery. At dusk, a light sensor automatically turns on the color-changing LEDs that transition from white to blue, green and pink. Holds up to six 3” chlorine tablets and features an adjustable dispensing rate.