Hydro Crunch T5 4x4 Fluorescents are built with 95% reflective aluminum interior to maximize light intensity and distribution and is perfect for the vegetative growth period of your plants. This fixture can be hung horizontally or vertically, 4 x 6400K HO bulbs included, slotted housing for optimal cooling, runs on 120-Volt. Propagate your seedlings effectively with a high output fluorescent light made for plant propagation. 20,000 total Lumen in the blue spectrum is perfect for propagating seedlings, clones or keeping plants happy year round. At 5,000-Lumen and 54-Watt per bulb, the high output T-5 boasts itself as the strongest fluorescent lighting around. Includes FREE pair of rope hangers.