HydroFarm's Designer T5 System delivers performance, flexibility and high lumen output in any growing environment. These daisy-chainable systems allow you to choose multiple hanging configurations to meet your garden's design. They combine German specular aluminum reflector with energy-efficient/high-output T5 bulbs and put out double the light energy of normal fluorescent systems. Includes appropriate number of fluorescent 6400K, T5 tubes. NOTE: This unit will also work with the Hydrofarm's Jump Start 2' Fixture (JSV2).