... no mercury and other harmful heavy metal, no light harmful for plant8)Energy-saving: emitting light fully absorbed by plant, ... choose the wavelength and color ratio which is most suitable for your plant.12)Available: 14W 45W 50W 90W 120W ... blue 8;1. Any ratio could be customized. ApplicationSuitable for the greenhouse lighting, horticulture, hydroponics, farm, flower exhibition, garden, bonsai etc.