Each 4' long fixture of this high-intensity light garden has three super-bright, full-spectrum T5 fluorescent bulbs, so it provides 50% more light than dual-bulb fixtures. Maximum light intensity is vital to growing orchids and other plants from seed all the way to flowering and fruiting. This grow light stand has a rugged, powder-coated, rustproof aluminum frame, and three growing shelves that provide plenty of room for seedlings and houseplants. The light fixtures easily adjust up and down as plants grow. Includes frame, light fixtures, T5 fluorescent bulbs, watertight trays and casters.