... ,Timer,Light sensor,Light sensor on + Timer off.l Built in timer, suitable for a periodic discharge system such as solar street ... lights, solar pumps etc.l Over charge, over discharge, overload and short ... .productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); 20A 12/24V MPPT solar charge controller 15-30% more power