Increased Light, Increased Growth. Up to 25% more growth. Works on all AeroGarden. Heavy duty mylar reflects light back into the plants for faster growth. In our tests we grew 25% more basil in just 5 weeks. Light is a vital element for indoor gardens, and almost without exception, more is better. With the Power Grow Light Boosters, plants grow fuller, thicker and faster, with tighter internodal spacing. Sets up easily in minutes. Light Boosters are scored in strips for better air flow and reduced heat buildup. Increases plant growth in any AeroGarden. Includes four 8.5 by 13 inch reflectors, enough to cover 7 Pod AeroGardens.