Renogy 400 Watt 12 Volt Monocrystalline Solar Bundle Kit Four Renogy 100 Watt monocrystalline grade A high efficiency solar panels. The charge controller has been upgraded to Renogy's new 30A PWM negative ground charge controller the-Renogy Wanderer. One 9In MC4 connector adaptor kit with MC4 male and female connectors Three pairs of branch connector included for parallel connection to maintain 12volts. Fully self powered offgrid systems