Upgrade design 1: upgrade waterproof function, IP68 waterproof, you can put the bulb completely into the water, you don't have to worry about the product getting water, extend the lamp life Upgrade Design 2: The swimming pool bulb is equipped with solar panels, no need to insert batteries and no need to manually turn off the lamp. The lamp turns on automatically at night and turns off the light automatically during the day. High quality material: UV protected PC + ABS material, heat-resistant silicone waterproof ring structure prevents water penetration and guarantees a long service life. The thickened ABS exterior features anti-corrosion protection and marked water resistance. 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 needs to be charged for 6 hours . The lamp can work for 3-5 nights, eliminating the hassle of changing batteries Package: 1x Solar Swimming Pool Light (Blue), 1x Solar Swimming Pool Light (Green) Note: The data is all measured manually, please allow 1-3cm error due to difference in light and temperature. display, there may be some color differences, please refer to the actual item received. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!