Aquatic Life T5 HO Hybrid 4-Lamp Mounting System Fixtures, Black . Get the best of both worlds by combing the efficiency and shimmering of LED lighting with the spectrum and coral-growing-power of T5 lighting. Available in 24", 36", 48" & 61" lengths for 18-30" wide (front to back) aquariums. Universal mounts included for EcoTech Radion (TM) and AI Hydra & AI Prime (TM) LED Fixtures. Optional black bracket for Kessil LED lights are available for purchase separately. White Decorative Endcaps and Suspension hardware are included. T5 Lamps, mounting arms and LED fixtures NOT included. Features HEP (TM) Brand ballasts drive all T5 HO lamps, including popular ATI (TM), Reef Brite and Giesemann (TM) Silicone socket lamp endcaps protect pins of T5 HO lamps from moisture and salt creep Reflector design keeps light output focused inside the aquarium Specifications T5 Output: 4 x 24W (Bulbs sold separately) Assembled fixture dimensions: 24" x 18" Weight: 9 lbs Brackets Included: 2 - Standard Brackets (for one EcoTech or AI fixture)