Solar Charge Controller 12V/24V 30A

I purchased this but haven't had a chance to use it, so I'm selling it.
Please understand that I don't have detailed information about the product.

Solar charge controller with a maximum PV input of 390W.

- Model: Solar Charge Controller
- Rated Voltage: 12V/24V
- Rated Current: 30A
- Max PV Voltage: 50V
- Max PV Input Power: 390W (12V) / 780W (24V)

Thank you for looking.