TR technology with Half cell aims to eliminate the cell gap to increase module efficiency (mono-facial up to 21.48%). Best Warranty 12 year product warranty, 25 year linear power warranty. Higher lifetime Power Yield 2% first year degradation, 0.55% linear degradation. 9BB instead of 5BB 9BB technology decreases the distance between bus bars and finger grid line which is benefit to power increase. POWER YIELD Avoid debris, cracks and broken gate risk effectively 9BB technology using circular ribbon that could avoid debris, cracks and broken gate risk effectively.