Specification: 1. 18pcs 3 w LED Chip, 60 90 120 degree lenses. 2 ... effect is just 8% - 10%. 3. These LED grow lights use only about half the electricity as ... all phases of plant growth, and works well with water solution culture and soil culture. Can be used ... garden, green house, sowing,breeding, farm, greenhouse cultivation, water soluble breeding, greenhouse cultivation, pipeline cultivation and so on ...