We are offering solar inverter. A solar inverter, or pv inverter, converts the variable direct current (dc) output of a photovoltaic (pv)solar panel into a utility frequency alternating current (ac) that can be fed into a commercial electricalgrid or used by a local, off-grid electrical network. It is a critical component in a photovoltaic system, allowing the use of ordinary commercial appliances. Solar inverters have special functions adapted foruse with photovoltaic arrays, including maximum power point tracking and anti-islanding protection. solar charge controller v guard a charge controller, or charge regulator is basically a voltage andor current regulator to keep batteriesfrom overcharging. It regulates the voltage and current coming from the solar panels going to the battery. Most "12 volt" panels put out about 16 to 20 volts, so if there is no regulation the batteries will bedamaged from overcharging. Most batteries need around 14 to 14.5 volts to get fully charged.