TYPE AProduct Name : USB LED Plant Grow Light AColor : BlackPlug type : USB PortInput Voltage: 5VInput Current: 3A / Please use a power supply above 3AWattage : 78led (15W) /156led (30W )/ 234led (45W)/ 312led (60W)(This wattage is the luminous efficiency of the lamp, not the actual power consumption.)Lifespan : More then 50000 hoursCable Length : About 60 cmSwitch type : Automatic memory switchMaterial : Premium metal & Plastic , Made of durable and practical metal and plasticTYPE A of 3 supplemental light modes1--Red(660nm)+Blue(460nm);2--Red(660nm);3--Blue(460nm);* Multiple UsesThe Grow Light can be used for food production, plant propagation, indoor gardening, indoor hydroponics and horticultural applications.-Promotes the growth of succulent plants such as cactii, etc.-Improves the taste of vegetables such as cucumbers, tomatoes, etc.-Improves flower quality and lengthens flowering time.BLUE LIGHT AND RED LIGHTBLUE LIGHT influences the formation of chlorophyll, enabling the plant to intake more energy. Plants that receive plenty of blue light grow with strong, healthy stems and leaves. This process is called photomorphogenesis.RED LIGHT contributes to the optimal development. It's essential to a plant's early life for seed germination, root growth, and bulb development. It also makes the plant yield better results when flowering.