The Eclipse are better panels it's there new panels they added last year they're selling the old ones cheap to get rid of them.
These panels make more power than the old ones
The other part is the MPPT lets you run in series which lets you run 24volts to it
This kits gives you all the fuses, wires and Battery and Tracer Meter that lets you sett up your system the way you want it to run or you can run at stock settings
I'm very happy with it
it takes about 3 hours to charge my batteries back up in the morning I don't skimp on the power we use thru out the day,
I'm now expert but when my wife tells me to buy the new technology I do what she tells me lol.