BTW Renogy also is available on Amazon but I bought direct. 10% off sales with free shipping are fairly common.
Also they seem to have a different controller now with a display instead of lights. PWM controllers are in the $30-$40 range.
Might mention that to mount on the rear module (shade over the bedroom), 48" long is a max.
ps the self tapping screws in the Renogy starter kit are about 1/4" too long (don't ask). Are several threads on better ways to mount but something in the Florida air seems to eat tape in a few years.
ps: if you really want something portable,
see here.