Longi unveils 690 W back-contact solar module with 25.54% efficiency

Longi has introduced its Hi-MO X12 back-contact solar modules, featuring an integrated conductive backsheet that replaces conventional soldered ribbons with metal foil circuits. The company claims the design eliminates more than 15,000 potential solder-joint failure points per module, improves current-carrying capacity, and increases power output by 6 W to 8 W; the module is rated at 690 W with 25.54% efficiency.

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