Wow,I'm trying the hyrda with the director.I didn't give up my ati t5 fixture.With full control of the spectrum,I think you can get what you need.The director is very easy to use.You can be sure,if this light dose not grow my sps after trying all that i can do with this hydra,I will let it be known.I still need to buy two more units for my 180.As of now.I got my sunpower ati fixture over it with a 1 hydra.