This superb quality grow light delivers performance, flexibility & high lumen output in any growing environment. It combines German specular aluminium & sockets (for longer life) with energy-efficient/high-output T5 bulbs (providing double the lamp energy of normal fluorescent systems). It also features 3 hanging options (overhead, vertical or horizontal), a power switch on the unit, powder coated, pre-galvanized steel housing, 5 year warranty (on ballast components) & 3m (10') power cable. 58cm (23) x 18cm (7) x 7cm (2) deep.