This is a starter kit by Renogy with two 100 W monocrystalline solar panels and 20 A Rover MPPT charge controller. MPPT controllers transfer power 30% more efficiently so the charging time is faster. The charge controller allows for the system expansion up to 400 W in 24 V battery systems so you can add more panels later. 200 W is just right for 12 V systems with 20 A MPPT charge controller. Renogy Rover features a die-cast aluminum shell for efficient heat dissipation.
Renogy 200W 12V Mono Solar Starter Kit for RV, Boat w/ 20A Rover MPPT Charge Controller
2 x RNG-100D Solar Panels
1 x Renogy Rover 20 A MPPT Charge Controller
1 x 20 ft 10 AWG MC4 adaptor kit, 1 x 8 ft 10 AWG tray cable, 2 x set of Z-brackets, MC4 connectors