630–650 W · 72-cell · HPBC back-contact · Mono-glass
LONGi
15-year product warrantyGlobal
Reviewed 2026-06 · Document v1.0
Very good
Guarantee & backbone
About this document
review.solar’s plain-language summary of the manufacturer’s warranty terms as at the review date. Not a legal instrument: verify current terms with the manufacturer before making a claim.
15yr
Product warranty
30yr
Performance warranty
88.85%
Output at end of term
Performance guarantee: 30-year linear output
Projected outputGuaranteed floor: 88.8% at yr 30Product warranty ends yr 15
The guarantee
15-year product warranty
30-year linear performance warranty
Materials and workmanship defects
Linear performance degradation
What voids or limits it
Labour and reinstallation
Physical damage and improper installation
Unauthorised modifications
Normal soiling and weathering
How to claim
Contact LONGi or the supplying authorised distributor with proof of purchase, module serial numbers, a description of the defect or performance shortfall, and supporting documentation such as installa Full summary, conditions and sources: page 2.
Page 2 · Complete warranty summaryHi-MO X10 Explorer LR7-72HVH 650M
Warranty period
15-year product warranty
LONGi warrants the Hi-MO X10 Explorer LR7-72HVH 650M against material and workmanship defects for 15 years from sale to the end user, repairing or replacing: at its discretion: modules failing from a covered manufacturing defect. Remedy is parts only; removal, reinstallation, and labour are not covered.
30-year linear performance warranty
A 30-year linear performance warranty guarantees output above defined thresholds: maximum first-year degradation 1.0%, annual degradation thereafter no greater than 0.35%, and output at or above 88.85% of nameplate rated power at the end of the 30-year term.
What’s covered
Materials and workmanship defects
Covers defects attributable to manufacturing processes or materials: cell defects, junction box failure, frame corrosion, delamination from production quality issues. LONGi's obligation is to supply a replacement or, at its election, repair the unit.
Linear performance degradation
Where measured output falls below the warranted linear schedule at any point in the 30-year term: verified under standard test conditions: LONGi makes up the deficit with additional or replacement modules of equivalent rated power.
Exclusions
Labour and reinstallation: Removal of defective modules and reinstallation of replacements are expressly excluded: the claimant bears all labour and access costs.
Physical damage and improper installation: Damage from improper installation, mounting, wiring, or handling inconsistent with LONGi's guidelines is excluded, as is damage from external events: hail beyond rated specification, flooding, fire, lightning, acts of God.
Unauthorised modifications: Modification, repair, or alteration by parties not authorised by LONGi, or use outside rated specifications, voids the warranty.
Normal soiling and weathering: Performance losses attributable to soiling, dust accumulation, shading, or normal environmental weathering are not covered under the performance warranty.
Transferability
LONGi's standard terms disclose no transfer mechanism: the warranty stays with the original purchaser and does not pass to a subsequent owner or third party.
How to make a claim
Contact LONGi or the supplying authorised distributor with proof of purchase, module serial numbers, a description of the defect or performance shortfall, and supporting documentation such as installation records or test data. LONGi may require on-site inspection before authorising a claim. Submit via longi.com or the supplying distributor.