solar project// 1: how do I convert 12 volts dc to 24 volts ac ? i have a 12 v.d.c. plug in inverter to 120 v.a.c. and a 120 to 24 volt ac transformer which works but uses to much power 2: can I convert 12 volt dc. to 12 volt ac. to operate a photocell I found. 3: where do i find a 12volt ac or dc 7 day / week timer. all of my ideas are to conserve battery & reserve time to allow the solar panel to recharge the battery sufficiently for continual use. My circuit load is 12 volts dc and 7 watts. Thank you
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