Everything needed to install backup solar in your home, cabin, or outbuilding. All items are brand new, never used, still in the box. There are 15- 100 W monocrystalline panels, 3- 40 amp MPPT charge controllers, 3- 1500 pure sine wave inverters, 6- 12 V rechargeable gel batteries, 3 remote meters. All the cable and connection pieces are part of this package deal.