5. Full Cell, Half Cut, 3-Cut
6. Perc/Hjt/All Black/Frameless Tech
7. Sunway Solar Brand or Tier 1 Optional
8. Waterproof Label on Back of Panel
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Off-grid system is suitable for areas without grid-connected or unstable grid-connected power.
Off grid system is usually composed of solar panels, connector, inverter, battery and mounting system.