Design 1: Upgraded waterproof function, IP68 waterproof, the bulb can be completely put into the water, no need to worry about water entering the product, extending the service life of the lamp Design 2: The swimming pool bulb is equipped with a solar panel, no need to insert the battery, no need to turn off the light manually. The lights will automatically turn on at night and off during the day. Material: UV-resistant PC+ABS material, structure and heat-resistant silicone waterproof ring can prevent water penetration and ensure a long service life. The thickened ABS shell has significant anti-corrosion and waterproof functions. These underwater pool lights are stunning nighttime decorative light sources for indoor and outdoor use. Working hours: Automatic solar charging during the day, only 6 hours of charging required. The light can work for 3-5 nights, eliminating the trouble of replacing batteries. Wide range of uses: suitable for wet and dry places, such as swimming pools, aquariums, ponds, swimming pools, gardens, vases, parties, holiday decorations, weddings, vases Pedestal, hot tub, pond, home, bathroom, fountain. Tips: Make sure the cap is properly tightened and clockwise before placing it in the water. Colour: Light Dimensions: 11.6 x 2.5 cm. Shipping quantity: 2 pieces