98% efficiency Inbuilt Low voltage disconnect (LVD) Automatic battery selection USB port for DC load connection.

UTL Charge Controller PWM1224 - 10A - LED UTL Solar Charge Controllers are advanced technology and hugely demanded solar products. The use of charge controllers in photovoltaic systems increases the energy harvested significantly. UTL solar charge controller basically controls the device voltage and opens the circuit, halting the charging, when the battery voltage ascents to a certain level.

On-grid means your solar system is tied to your local utility's GRID. This is what most residential homes will use because you are covered if your solar system under or over-produces in regard to your varying energy needs. All this means for you is that your utility system acts as your battery space.