The Interpet LIFE LIGHT Blue & White LED Light is a spot light source, which creates a beautiful ripple effect in the aquarium. It is fully waterproof, reliable and low voltage for peace of mind. The ultra-bright LEDs provide a balanced spectrum, bringing out the best in the colors of your aquarium and encouraging healthy plant growth. Either fit to the aquarium hood with adhesive pads, glue or screws, or underwater using the suction cups provided.