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The 25-Year Combined Warranty By SunPowerWe are proud to offer a 25-year manufacture warranty through SunPower Solar Systems, the world’s best. In the unlikely event you have an under-performing panel, SunPower will make all reasonable efforts to repair or replace it. By combining power and product coverage in one warranty, SunPower eliminated concern about the difference between manufacturing defects and power output.
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Power Guarantee
SunPower solar cells convert sunlight to electricity at a world record efficiency of 22.4%, which means they produce up to 50% more energy per square meter than other solar technologies. What does this mean for you? Highly efficient solar panels from SunPower generate more energy over the lifetime of your system than other panels. Compared to other solar panels, SunPower converts the greatest percentage of sunlight into energy. Product Efficiency & Reliability Information
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