The Jump Start JSV4 light system is ideal 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. When germinating seeds, the fixture can be kept just inches away from the seeds (or humidity dome). After sprouting, keep the fixture 4-8" away from the plant canopy.