We've paired fold-up metal shelves with magnetic light fixtures to help you create optimal space and light for everything you want to grow indoors! Use just one high-output LED fixture per tier for lower-light plants, or use two if you have light-hungry ones! Choose a system with two or four LED fixtures depending on what you want to grow. Need more than four? Additional fixtures are available in sets of two. Entire frame folds flat for storage too. Matching trays sold separately.