1. COB+3w chip, light more uniform 2. Pure aluminum heat sink, aluminum shell, corner temperature below 40 3. Footprint is more bigger than other 3w LED chip LED grow light 4. 2 channel dimmable 5. Patent product Ideal for all phases of plant growth, and works well with water solution culture and soil culture. Can be used in house garden, pot culture, garden, sowing,breeding, farm, flower exhibition, bonsai, garden, green house, sowing, breeding, farm, greenhouse cultivation, water soluble breeding, greenhouse cultivation, pipeline cultivation and so on.