The Classic models are the economic choice when the available space is not the limiting factor. Classic is the only SUNBEAMsystem model that uses Sunpower cells with a regular efficiency. This makes them less compact, but perfect for high power output demands where panel size is not crucial.
The Classic panels feature 6mm stainless steel holes. The 2.5mm2 cables with MC4 (IP67) connectors have an UV-resistant outer casing and are connected to the panel via a small Junction Box.