This indoor hydroponic unit has a robust metal design and quality Light Emitting Diodes (LEDs) that emit light primarily in the blue and red wavelengths. These segments of the light spectrum are crucial in aiding a plant's growth as blue light stimulates the formation of chlorophyll (crucial in the process of plant photosynthesis which aids healthy leaf and stem growth), and red light promotes germination, root growth, and bulb development. The outcome is an efficient light that provides only the wavelengths that your plant needs to grow! Features: Led grow light for indoor plants helps plants photosynthesis. Planet Grow Led for Plants, Grow Led High Light Low Heat, Better for Growing Plants. Full spectrum for all plant growth stages The grow light best for indoor plants, hydroponics. Lights with power wire and connectors, easy to install, plug in and play.