The GloFish® Color-Changing Cycle Light 5 gal includes white, blue and black LED lights to provide unique lighting effects for aquariums up to 5 gallons. Switch between 4 modes to enhance the colors of your aquarium. Transform your aquarium in moonlight mode with all blue LED lights on, midnight mode with all black lights on, twilight mode with blue and black light fade or sunlight mode with all lights turned on. This unique light changes the viewing experience of your GloFish décor and enriches the colors of your fish in bold and exciting ways. The quick install helps make it easy and convenient to turn any aquarium a GloFish aquarium.