Photovoltaic controller 2 to 6 Amps

I would appreciate very much if anyone could help me in obtaining the schematics to build a basic and reliable photovoltaic controller (charging current 2 to 6 Amps).
It is for a private project, to supply 3 LED bulbs, one 12 volt radio, and a cellphone charging device.

Your help will be much appreciated.

Best regards and thank you.

C. Freire

mite b u can use an optocoupller.........check if u can use it

Carlos, are you charging a battery which in turn powers the leds, radio, and cellphone charger?
What battery voltage?
What solar panel output voltage?
How many amps in bright sun?
Do you want to build or buy?
How experienced are you to build?