The Marina Micro LED Aquarium Light helps you enhance the appearance of your aquarium by creating spectacular lighting effects. It will showcase your favorite ornament or plant, or can be used as a nightlight to capture a glimpse of your aquarium's nocturnal activities. The fully submersible Micro LED Aquarium Light is super-easy to use, and can be positioned anywhere inside or outside your aquarium thanks to its integrated suction cup mount. Position it above the water surface to create a tight beam shimmering effect, or submerge the Micro LED for a diffused light effect. The blue Micro LED Aquarium Light is designed to simulate moonlight. It does not include a power supply, and therefore must be used with either the Marina Micro LED light Set or the Micro LED Hub (both sold separately).