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Produced from polycrystalline silicon ingots, these panels have a blue and white speckled appearance. Their conversion efficiency ranges from 18% to 22%, slightly lower than monocrystalline ones. The advantage lies in simpler manufacturing processes and lower production costs. They perform stably in general light conditions and are suitable for large-scale ground-mounted power plants, rural electrification, and other projects with sufficient installation space and cost-sensitive requirements.