LONGi · Solar panel model
Hi-MO X10
LONGi Hi-MO X10 is an HPBC 2.0 back-contact module family with n-type TaiRay wafers, including 54-cell single-glass and 72-cell dual-glass Explorer variants.
Specifications
| Specification | Value |
|---|---|
| Rated power (W) | 475-490 for LR7-54HVH; 635-645 for LR7-72HVD, at STC |
| Cell type | n-type HPBC 2.0 back-contact, TaiRay wafer, zero-busbar |
| Module efficiency (%) | 23.3-24.0 for LR7-54HVH; 23.5-23.9 for LR7-72HVD |
| Dimensions (mm) | 1800 x 1134 x 30 for LR7-54HVH; 2382 x 1134 x 30 for LR7-72HVD |
| Power temperature coefficient (%/°C) | -0.26 |
| Nominal operating cell temperature (°C) | 45 ± 2 |
| First-year degradation (%) | under 1 |
| Annual degradation (%) | 0.35 in years 2-30 |
| Product warranty (years) | 15 for LR7-54HVH and LR7-72HVD Explorer; other regional or named variants may differ |
| Performance warranty (years) | 30 |
| Performance-warranty end value (%) | 88.85 |
| Bifacial | variant-dependent: LR7-54HVH is single-glass monofacial; LR7-72HVD is dual-glass bifacial |
| MCS listing | current exact LR7-54HVH and LR7-72HVD wattage entries at 22 July 2026 |
Hi-MO X10 is LONGi’s second-generation back-contact module family, using HPBC 2.0 cells and n-type TaiRay wafers. It includes several named series and physical formats. The figures here apply to two Explorer datasheets: LR7-54HVH 475-490M and LR7-72HVD 635-645M.
Two Explorer formats
LR7-54HVH is a 108-half-cell, single-glass module measuring 1800 mm by 1134 mm. Its datasheet runs from 475 W to 490 W and the series is monofacial.
LR7-72HVD is a 144-half-cell, dual-glass module measuring 2382 mm by 1134 mm. Its datasheet covers 635 W to 645 W and gives a bifaciality value of 70%, with a tolerance of plus or minus five percentage points. Rear-side contribution is additional to the front-side standard test conditions rating.
Both documents state a -0.26% per degree Celsius power temperature coefficient, less than 1% first-year degradation and a 0.35% annual figure for years two to 30. They also give a 15-year materials-and-processing warranty and a 30-year linear power warranty ending at 88.85%.
Family boundaries
LONGi uses Explorer, Scientist, Guardian and Artist names within Hi-MO X10. Company launch material describes family peaks above these two Explorer ranges, including modules up to 670 W. Those headline values must not be substituted for the electrical table of an LR7-54HVH or LR7-72HVD.
Some LONGi European material describes a longer product or materials warranty than the 15 years printed on these two datasheets. A longer regional offer applies only where the warranty document for the exact module confirms it.
The MCS Product Directory contains current exact-wattage entries for both LR7-54HVH and LR7-72HVD. The full suffix and wattage must match the product being supplied.
Availability
LONGi introduced Hi-MO X10 in Europe during 2025 and presented the range at Solar & Storage Live in Birmingham that September, which it described as the UK premiere. It later stated that UK deliveries were under way. The family remains on its European site and exact LR7 records are current in the MCS directory at 22 July 2026.
Related entries
Brand
Reference type
Solar panel model
Last reviewed
22 Jul 2026
Current status
Current in the manufacturer's UK range.