The Sunny Island 4548 and 6048 are bi-directional battery-based inverter/chargers that can be used completely off-grid, or for battery backup in grid-tie systems with Sunny Boy grid-tie inverters.
The Sunny Island can back up critical loads during utility grid blackouts.
In off-grid systems, the Sunny Island works with Sunny Boy inverters exactly as it does with grid-tie systems.
Buy it online at ironedison.com. Our price start from $4,472.98. Call us to know more... 720-432-6433