T5 Designer 4ft Tube FixtureHydrofarms new 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 gardens design. They combine German specular aluminum with energy efficient high output T5 tubes and put out double the light energy of normal fluorescent systems. Features Available in 2 and 4 foot units 2 foot: 2, 4, or 8 bulb 4 foot: 4,