The Renogy 400W 12V Premium Kit is the most economical choice for the off-grid adventurer. With the ability to access energy wherever there is sun, the options for your journey are limitless. The Rover Li 40A MPPT Charge Controller included in this kit features multi-phase synchronous rectification and Maximum Power Point Tracking technologies, which increase charging efficiency.This kit includes the new 100W Eclipse/mono Solar Panel which is not only sleek in size, weight, and color but are made of the highest efficiency solar cells that Renogy has to offer. Our new Bluetooth module is also included which can be paired to the Renogy BT APP. The Renogy BT APP allows users to remotely monitor and change their photovoltaic system's parameters with a few simple swipes on their smartphone or tablet. For convenience, this kit also consists of four sets of mounting Z-Brackets, one 20ft 10AWG MC4 Adaptor Kit, one 8ft 8AWG Tray Cable, fusing components for your controller and battery.This Premium Kit is perfect for installation on an RV, boat, or camper. It can also be installed in a ground mount system next to an off-grid campsite, making it an ideal choice for many off-grid applications.