deal for seedlings, cuttings, flowers and house plants. Grow seedlings faster with 15-20% more lumens Simple toggle clamp for easy lamp height adjustment Super easy assembly Internal reflective finish directs more light to plants 24" interior width When germinating seeds, the fixture can be kept just inches away from the seeds (or humidity dome). After sprouting, keep the fixture 3-6" away from the plant canopy. INCLUDES T5 high output grow light fixture and bulb (24 watts) 6' grounded cord with on/off switch System size: 2' dimensions: 24" H x 18" W x 26" L 4' dimensions: 31" H x 18" W x 50" L System box size: 2' dimensions: 7" H x 2" W x 30" L 4' dimensions: 7" H x 2" W x 53" L