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. Lamps fit into any of the Aqueon LED light fixtures, strips or hoods with interchangeable LED lamps Maintains brightness and color over time Uses 70% less energy than T8 fluorescent lamps Easy-install LED lamps snap into place Create custom lighting for a variety of aquatic habitats Max Blue LED is a deep sea illumination that intensifies the fluorescing effect of fish and corals Comes in 24" & 30"