The 10 AMP Solar Charge Controller by Cyclops Solar Solutions regulates and protects 12 volt batteries from overcharging and discharging. This charger is maintenance-free protection for your solar panel and batteries and is also small, compact and easy to mount. It handles up to 10 AMP (130 Watts) of array current. There are 2 LED charging lights that indicate the charging status: Green= Charged Yellow=Charging. It can be used with gel-cell and lead-acid 12 volt batteries, and is highly recommended for any solar panel rated 9 watts and over. It is compatible with any 12 volt solar panels.