BlueSolar Monocrystalline Panels Low voltage-temperature coefficient enhances high-temperature operation. Exceptional low-light performance and high sensitivity to light across the entire solar spectrum. 25-Year limited warranty on power output and performance. 5-Year limited warranty on materials and workmanship. Sealed, waterproof, multi-functional junction box gives high level of safety. High performance bypass diodes minimize the power drop caused by shade. Advanced EVA