Newest Rechargeable Submersible Lights Our LED floating pool lights come with built-in Li-polymer batteries that can be conveniently recharged via any power source with a USB port (USB cable included). You'll never need to buy batteries again! With a full charge time of just 2.5 hours, these lights can continuously last up to 24 hours at their brightest setting and up to 100 hours at their dimmest setting. Plus, they're five times brighter than the AA version! Upgraded Waterproof and Adhesive Each underwater pool light features a brand new integrated seal design, has passed the IP68 waterproof test and can be immersed in water 100% safely without any corrosion or water stains. Upgraded underwater glue, which is safe, harmless, and environmentally friendly, no matter for smooth surface or textured surface, the glue forms a strong bond. Timer Function & Remote/Manual ControlRF remote control has a wider and deeper range, allowing for stable control of multiple underwater lights in one time. What's more, our submersible LED pond light comes with timer function (2H/4H/6H) that can automatically turn on/off devices at specific times, the memory function making life easier. The remote allows for easy control of color modes, brightness, and timing. Premium 13 LED Light Source Our swimming pool lighting boasts 13 LED lamp beads that provide a bright and comfortable lighting experience without flicker or glare. Choose from 16 static color modes, 3 color-changing modes (Fade, Smooth, Flash), and 4 brightness levels to easily create a more beautiful atmosphere. Perfect for using as indoor/outdoor lighting, decorative lights, or night lighting.