Filtered lights = lower efficiency and more heat, not what you want.
RackitMan Reviewed by RackitMan on . CFL LIGHT QUESTION All right here is a question, when growing with cfl's would using coloured cfl mixed in with the rest of them aid or hinder the growth. Blue for veg and red for budding. i thought it might be a interesting topic, if anyone has done it let us know what were your results. Rating: 5