[Advanced Bluetooth Operation] Unlike basic remote-controlled lights,Our smart pond lights led underwater put 16 million vibrant colors at your fingertips, with customizable flash modes for every occasion. The real game-changer? You can control each light,even individual LEDs to create stunning multi-color effects from a single fixture, transforming your ordinary pond into a breathtaking underwater light show. Plus, enjoy ultimate convenience with our 24/7 auto timer that handles your daily on/off cycles automatically. [IP68 Waterproof & Safe 5V Output] Engineered with IP68 waterproof certification and hardwired, these colorful underwater pond lights with stand depths up to 6.5ft, whether illuminating icy winter fountain, summer garden pond, rainy-day water features or shaded areas. The low-voltage 5V DC system guarantees safety for fish, plants. *Note: The power supply is not waterproof, we strongly recommend installing the power supply within a waterproof box to safeguard against rain, snow, and humidity exposure when used outdoors. [Dual Installation Flexibility for Land & Water] Featuring internal weighted bases, fountain lights led underwater adapt effortlessly between submerged anchoring and ground-mounted landscape lighting. The plug to the first light primary cord is 9.84ft and 3.9ft inter-light spacing allows flexible winding garden streams or expansive koi fish pond, while resistant ABS ground pole secure fixtures on soil surfaces.Note: No connectors between lights, structural modifications are not supported. [Multi-Scene and 120° Angle Adjustment] The ultra-bright LEDs to illuminate waterfall edges, accentuate prized koi, light up garden sculptures or create dramatic uplighting for palm tree. From backyard fountains to commercial aquariums, T-SUN submersible pond lights with remote control excel as all-in-one decorative systems. [Enjoy Versatile Control Options via APP & Remote & power switch] The APP unlocks full customization—choose from 16 million colors, dynamic scene modes, music sync (lights dance to sound), brightness adjustment, programmable timers, and power control. The remote offers convenient operation for on/off, brightness, quick timers, color changes, and preset modes. For simple use, the physical power switch provides basic mode control. *Note: 49.21ft Bluetooth control range / 65.62ft remote control range. T-SUN Color Changing Pond Lights LED Underwater APP and Remote Control Submersible Fountain Lights IP68 Waterproof Landscape Spotlight Fish Tank Light for Koi Pond Aquarium Garden (Set of 12)