GRW 2 28 CSW CO M4 4 ft. 2-Light 28-Watt White T5 Fluorescent Grow LightThe Lithonia Lighting 4 ft. Grow Light allows for indoor gardening year round. It includes energy efficient T5 fluorescent bulbs that produce light comparable to natural sunlight. The fixture can be chain mounted or flush mounted and includes a cord and plug, on off switch and a convenience power outlet for linking multiple fixtures. Rugged post painted metal housing has a white finish T5 fluorescent bulbs us 75% less energy than incandescent and last