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    over voltage error message on HQST mppt

    I have a 20 a HQST mppt controller connected to 2 100ah chins in series for 24v. I have 3 100w panels in series. I am using this for my "back up entertainment" system but use it daily (tv,cable box, and indoor cell phone booster and 1 led 7w light.) Most all winter the solar kept the batteries...
  2. H

    DC switch for light

    I read somewhere ??? that you could use ac light fixtures with a dc 12 volt bulb to have a wider assortment of fixtures. I bought this fixture at Lowes, wired it to my 12v battery, added the 7w 12v bulb and had light. Put it on the wall to have instant back up light when the power goes off. I...