LED Aquarium Light Bulb Replacements fit inside Aqueon LED Modular Fixtures, Deluxe LED Full Hoods, and LED Strip Lights. The LED lamps maintain their brightness and color over time while using 70% less energy than T8 fluorescent lamps. Each LED lamp is easy to install and simply plug and “snap” into place inside the appropriately sized light fixture. Lamps available as Day White, Colormax, Max Blue and Beauty Max to customize your aquarium, all sold separately.