3-light modes: Blue light, Red light and Full Spectrum UV Light. Blue light helps promote dense foliage growth, while red light encourages flowering. Maintain a self-sustaining garden inside your home and see your plants grow from sprout to bloom. Since lighting needs vary by plant species or cultivars, we designed the Bionic Grow to have an adjustable, automatic timer (3-hour, 6-hour or 9-hours) as well as 8 brightness settings to cover most of your indoor plants lighting requirements. 3 ways to mount the Bionic Grow. Comes with Table-top stand for portability; clip-on the Bionic Grow on edges if you're out of space; or mount it directly on preferred location using screws (hardware included in every Bionic Grow purchase). Bring the best of natural light indoors. Grow organic, pesticide-free herbs like basil or sage for your culinary needs or if you just want your smaller ornamental plants maintain their lush foliage without having to take them out time and time again. Specifications: Comes with 4-light panels. Each panel with 15 in. flexible gooseneck. Built-in automatic shut off timer (3-hours, 6-hours or 9-hours), On/Off button. Plug in item using USB cord (included). No batteries needed.