Renogy 1200 Watt Monocrystalline Solar Cabin Kit for Off-Grid Solar System with 4 Pcs of 300W Panel and Midnite MPPT Controller Ideal for large off-grid systems such as remote cabins. Works with off-grid residential and commercial rooftop systems. Guaranteed positive output tolerance (0-3%); withstands high winds (2400Pa) and snow loads (5400Pa). The MidNite Classic allows you to stack multiple charge controllers, giving you more options for expansion. Newly added MidNite MNEDC- Quad houses included MNEDC100 breaker which acts as a DC disconnect for protection of your battery bank and charge controller.