KKmoon MR16 6W LED Plant Grow Light 2 Red 1 Blue Energy Saving Hydroponic Lamp Bulb for Indoor Flower Plants Growth Vegetable Greenhouse DC12-24V Blue light contributes to plant photosynthesis, promoting growth, protein synthesis and fruit development. Red light promotes rhizome growth, blossoming and bearing fruit, extending flowering phase and increasing output. Contains no harmful elements, environmental friendly. Outer shell with great heat dissipation, extending service life. Ideal for all plants which work on soil or hydroponic methods of growing in any indoor environment.