The Excelsior range of Solar panels provides superior value & performance for providing 12 & 24 volt solar power to charge and maintain DC battery banks.
They are of a monocrystalline and multicrystalline construction, in a sturdy aluminium frame, they have one of the highest power output per square metre and have a 20 to 25 year power output warranty.  Other models and sizes are available as well as regulators - call the office for details.