True Actinic 03 Blue provides light in the 420 nanometer range that reflects color pigments in organisms such as corals, fish and invertebrates causing them to fluoresce glowing colors.
The Coralife 36 watt 420nm Actinic Bulb is 16" in length and has a straight pin configuration. The 460nm actinic bulb provides a brilliant blue hue to your aquarium that can be used by corals to accelerate photosynthesis, as well as help to bring out their phosfluorescent colors and make them glow! This bulb also enhances fish coloration and adds a colorful touch to any aquarium. This bulb works well in conjunction with the Coralife 10,000 Kelvin bulbs to create that bright marine aquarium look for all tanks both freshwater and saltwater.