... and other harmful heavy metal, no light harmful for plant.8) Energy-saving: emitting light fully absorbed by plant, ... result.9) Ratio of Red, Blue is R&B 8:1; we also could change the ratio according to ... 120W 150W 200W 300W 600W with 1w led and 45*3w, 80*3w, 100*3w, 150*3w, 200*3w, 288*3w or Customized.13) With CE & ... above specification is on basic of red and blue 8:1. Any ratio could be customized.