so i have finaly perfected my computerized grow set up the comp controls the lights, water, fans, filters, ph, organic tea machine and the clone machine all off of a small tiny thin client computer it record data like the PH, water temp, light amps, ballast temp etc for the entire grow cycle this helps to improve efficiency and save cost the system can run up to 50 five gallon bubble buckets the system also controles the ambient room temp by controling a fresh air damper this helps keep the temp with in + or - 2.5 degrees.