Coralife (Energy Savers) - 36 Aqua T5 Double StripIdeal for Marine Reef, and Saltwater Aquariums.Aqualight T5 Series - Double Linear Strip is a sleek and streamlined fixture designed to enhance and complement aquariums. Its compact and low-profile style is suitable where space is limited. The 10,000K Daylight T5 fluorescent lamp emits a high-intensity lumen-per-watt output that simulates the midday tropical sun and the True Actinic 03 Blue fluorescent lamp provides a blue light in the 420 nanometer range that stimulates many pigments in organisms such as corals, fish and invertebrates, causing them to fluoresce in beautiful glowing colors. 36 in L34.38 in x W1 in x H3 in - UPC: 96316580220