You could run one 1000 watt HPS and it should be good for what, 10 sq ft? You can use google to find out how much your kilowatts cost. In California, I believe it's $0.12/hr to run a single 1000 watt hps lamp for an hour, 16 hrs a day, should come out to just over $60 a month. I used this.
AtomicBlaze42o Reviewed by AtomicBlaze42o on . ELECTRICITY SAVING I saw my electric bill today, not good. I currently have 2- 600w HPS, one on an 18 cycle, the other on 12. Could I run the 18 hour for only 12 hours, with say, an hour ON in the middle of the dark cycle to prevent flowering ? It WOULD save electric, but would i get enuff growth ? Comments appreciated. V. Rating: 5