<p>The Coralife Actinic 03 Blue lamp is a 100&#037; blue actinic 03 phosphor that peaks at 420 nanometers&#046; Lighting with a higher blue component better simulates the softer shades of dusk, dawn and the blue hue of deeper water&#046; Additionally, many marine invertebr</p><ul><li>2" x 1" x 29"</li></ul>