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This solar charge controller is suitable for using with DC electrical appliances such as bulb, radio, fan, 
television, etc.
where there is not access by electricity or need energy conservation. 
It regulates the voltage and current coming from the solar panels going to the battery. 
Maintain peak battery power and protect battery from overcharged and over-discharged to increase battery 
service life.

 - Battery require : 12V.
 - Solar Panel require : 16-22V. 5-60W.
 - Max. working current : 5 Amp.
 - Max. load current : 5 Amp.
 - Auto charge and cut-off power when battery is full or low.
 - Cut off the circuit operation when battery voltage is less than 10.5V, and reconnect when the voltage rise 
   up to 12V.
 - PCB dimensions : 102 x 77mm