Upgrade Design 1: Upgrade waterproof function, IP68 waterproof, you can put the bulb completely into the water, no need to worry about the product getting water, extend the life of the lampUpgrade Design 2: The swimming pool bulb is equipped with solar panels, no need to install batteries and no need to turn off the lamp manually, the lamp will automatically turn on at night and automatically off during the day.High Quality Material: UV protected PC+ABS material, heat-resistant silicone waterproof ring structure prevents water from entering and ensures a long service life. Thickened ABS exterior features strong anti-corrosion and waterproof. These underwater pool lights are amazing night decoration light sources for indoor and outdoor use.Long Working Hours: Automatic solar charging during the day, only need to charge for 6 hours, the lamp can work for 3-5 nights, so no tedious battery replacement is required.Package Includes: 1 x Solar Pool Light (Blue), 1 x Solar Pool Light (Green).