The assessment
How it scores, by category
Market position
The data
HPBC module
Produces DC electricity at the roof. It contains no system-level power conversion or storage.
- Product role
- None in the module.
- Published range
- 440 W
- Electrical layer
- DC module output
- Construction
- Rear contact, Monofacial, Mono-glass
Performance guarantee: 25-year linear output
Wattage figure based on the sourced rated power (440 W) applied to the guaranteed floor; modular/format differences aside, this is the same rated-power spec shown above.
Modelled effective output, year by year
Year 1 to year 25, at 30°C and 1000 W/m². Rated 440 W at STC.
How this is modelled
Compounds this panel’s own published first-year (1.5%) and annual (0.4%/yr) degradation figures against its 440 W rated (STC) output, then derates for the ambient and irradiance selected. Output is scaled roughly linearly with irradiance (1000W/m² against the 1000 W/m² STC reference). This is the dominant real-world effect at low light, whether from cloud, shading or soiling. Output is then further derated for heat, from this panel’s own NOCT (45°C) and temperature coefficient (-0.29%/°C), giving an estimated cell temperature of 61°C at that ambient and irradiance. A datasheet-derived estimate, not a field measurement or a warranty guarantee: it does not account for this panel’s own low-light efficiency response (a separate, less-consistently-published spec), or for wind and system design. See NOCT and temperature coefficient in the glossary.
Control panel
| Year | 1 | 5 | 10 | 15 | 20 | 25 |
|---|---|---|---|---|---|---|
| Watts | 388 W | 382 W | 374 W | 366 W | 358 W | 350 W |
| % of rated | 88.1% | 86.7% | 84.9% | 83.1% | 81.3% | 79.6% |
Verification & sources
Market context
Global evidencechange in the site menu
Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.
Benchmark anchor. The score uses the 435 W maximum of the exact published series. Its former Australian listing is expired, so the product is not presented as current Australian purchase evidence. Scored model: LR5-54HTH-440M · checked 2026-08-18. Evidence.
Sources & references · checked 2026-08-20
Strong evidence coverage
26 of 26 scored criteria link directly to a published source.
Values marked estimated, derived, or not found remain visible on the audit sheet and do not carry the same evidential weight as a linked source. Coverage measures direct links, not an independent guarantee that a claim is correct.
Record correction. Re-sourced 2026-08-18 and returned to Australian availability. The record previously scored the 435 W bin against a 415-435 M sheet at revision V17, and was marked unavailable in Australia because that bin's approval expired on 31 March 2025. LONGi has retired the Hi-MO 6 name: the family is published as Hi-MO X6, and the current Explorer sheet, version 20230926V19, spans 420-440 M. The CER export checked 2026-08-12 lists LR5-54HTH at 440, 445 and 450 W, and those bins split across two products: 440 W is the top of this Explorer sheet, while 445 and 450 W belong to the separate Hi-MO X6 Scientist LR5-54HTH 445-455 M sheet. The retained Australian scope is therefore the single 440 W bin, and the module is available again rather than withdrawn. Re-verification 2026-08-20: Independent energy yield recorded as brand-or-series under panel rubric v2.14.0, which applied to this criterion the same exact-model rule v2.13.0 applied to Verified reliability.
- Sourced valuesData card →
- Archived copy of the primary sourcePDF ↗
Show 6 more
- ContactManufacturer ↗
- Independent energy yieldIndependent test ↗
- Financial strength & warranty backingManufacturer ↗
- Manufacturing track recordManufacturer ↗
- End-of-life & recycling disclosureManufacturer ↗
- Independent energy yieldIndependent test ↗
Product record history
5 changes to this record · 65 products changed in this update
Independent energy yield
- Before
- Field/PAN energy-yield Top Performer
- After
- Brand or series yield-tested; exact model not covered
Source revision
- Current text
- Re-sourced 2026-08-18 and returned to Australian availability. The record previously scored the 435 W bin against a 415-435 M sheet at revision V17, and was marked unavailable in Australia because that bin's approval expired on 31 March 2025. LONGi has retired the Hi-MO 6 name: the family is published as Hi-MO X6, and the current Explorer sheet, version 20230926V19, spans 420-440 M. The CER export checked 2026-08-12 lists LR5-54HTH at 440, 445 and 450 W, and those bins split across two products: 440 W is the top of this Explorer sheet, while 445 and 450 W belong to the separate Hi-MO X6 Scientist LR5-54HTH 445-455 M sheet. The retained Australian scope is therefore the single 440 W bin, and the module is available again rather than withdrawn. Re-verification 2026-08-20: Independent energy yield recorded as brand-or-series under panel rubric v2.14.0, which applied to this criterion the same exact-model rule v2.13.0 applied to Verified reliability.
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Primary datasheet
9 changes to this record · 106 products changed in this update
Damp heat extended (2000h): Evidence status
- Before
- sourced
- After
- No longer recorded
Awards: Evidence sources
- Before
- https://www.longi.com/au/products/modules/hi-mo-6-explorer/
- After
- No longer recorded
Damp heat extended (2000h)
- Before
- 1000h IEC 61215 standard
- After
- No longer recorded
Damp heat extended (2000h): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- No longer recorded
33 changes to this record · 2 products changed in this update
NOCT (C): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Annual degradation (%/yr): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Model
- Before
- LR5-54HTH-415M / 420M / 425M / 430M / 435M; scored model LR5-54HTH-435M
- After
- LR5-54HTH-420M through LR5-54HTH-440M (108 half-cells, 6 x 18, HPBC back-contact, single glass); scored model LR5-54HTH-440M
Hail resistance: Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Fire classification (IEC 61730): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Guarantee period (yrs): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Source revision
- Before
- LR5-54HTH 415-435M Explorer DG V17, 2023-01-15
- After
- Re-sourced 2026-08-18 and returned to Australian availability. The record previously scored the 435 W bin against a 415-435 M sheet at revision V17, and was marked unavailable in Australia because that bin's approval expired on 31 March 2025. LONGi has retired the Hi-MO 6 name: the family is published as Hi-MO X6, and the current Explorer sheet, version 20230926V19, spans 420-440 M. The CER export checked 2026-08-12 lists LR5-54HTH at 440, 445 and 450 W, and those bins split across two products: 440 W is the top of this Explorer sheet, while 445 and 450 W belong to the separate Hi-MO X6 Scientist LR5-54HTH 445-455 M sheet. The retained Australian scope is therefore the single 440 W bin, and the module is available again rather than withdrawn.
Policy
- Before
- highest_in_series
- After
- highest_in_market
Ranges
- Current text
- checked: 2026-08-18; market: AU; max: 440; min: 440; range label: 440 W; source revision: LONGi Hi-MO X6 Explorer LR5-54HTH 420-440M datasheet 20230926V19 and CER export checked 2026-08-12; source url: https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf; unit: W
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Encapsulation & frame constructionPrimary datasheetPublished name
- Before
- Hi-MO 6 Explorer 54HTH
- After
- Hi-MO X6 Explorer LR5-54HTH
Temp coefficient Pmax (%/C): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Module efficiency (%): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Contact: Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://www.longi.com/au/products/modules/hi-mo-6-explorer/
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf; https://www.longi.com/au/products/modules/hi-mo-6-explorer/
Scored Model
- Before
- LR5-54HTH-435M
- After
- LR5-54HTH-440M
Source
- Current text
- checked: 2026-08-18; source revision: LONGi Hi-MO X6 Explorer LR5-54HTH 420-440M datasheet 20230926V19 and CER export checked 2026-08-12; source url: https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
The previous text is not reproduced here: both versions run to a full research paragraph. Both are in the JSON record linked below.
Encapsulation & frame constructionPrimary datasheetPerformance guarantee period (yrs): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Cell technology tier: Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://www.longi.com/au/products/modules/hi-mo-6-explorer/
- After
- https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf; https://www.longi.com/au/products/modules/hi-mo-6-explorer/
AU Certifications
- Before
- The exact LR5-54HTH-435M Australian approval expired on 31 March 2025. Current 440 W, 445 W and 450 W entries are distinct power bins approved through 20 August 2027.
- After
- The CER approved PV module export checked 2026-08-12 lists exact LR5-54HTH models at 440, 445 and 450 W. Only 440 W falls inside this Explorer sheet's 420-440 M ladder; 445 and 450 W are covered by the separate Hi-MO X6 Scientist 445-455 M sheet, which is a different product.
Guaranteed end-of-warranty output (%): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Canonical identity
- Before
- LONGi Hi-MO 6 Explorer 54HTH 435 W
- After
- LONGi Hi-MO X6 Explorer LR5-54HTH 440 W
Power tolerance (%): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
AU Status
- Before
- unavailable
- After
- available
Positive loading (MQT16, Pa): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
Primary Source
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
AU Evidence sources
- Before
- https://cer.gov.au/document/cec-approved-pv-modules-0; https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/Limited_Warranty_for_LON_Gi_Hi_MOX_6_Solar_Modules_Distributed_Generation_Market_2_805e410250.pdf; https://www.longi.com/au/products/modules/hi-mo-6-explorer/; https://www.longi.com/en/news/all-energy-australia-2025/; https://www.longi.com/en/news/longi-raystech-2025-smart-energy-exhibition/
- After
- https://cer.gov.au/document/cec-approved-pv-modules-0; https://cer.gov.au/document_page/cec-approved-pv-modules; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F131_LR_5_54_HTH_445_455_M_30_30_and_15_Frame_Scientist_V19_9e6db880ac.pdf
Negative loading (MQT16, Pa): Evidence sources
- Before
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf
- After
- https://static.longi.com/20_L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_415_435_M_30_30_and_15_Frame_Explorer_DG_V17_2ccb21ba87.pdf; https://static.longi.com/L_Gi_LE_PM_T_PMD_059_F130_LR_5_54_HTH_420_440_M_30_30_and_15_Frame_Explorer_V19_4448f2931d.pdf
1 change to this record · 7 products changed in this update
This is review.solar's publication history. It does not claim the product changed on the recorded date, and it excludes compatibility, system pairing, installation suitability and relative leaderboard prose. Open the complete JSON record.
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- AU market evidence checked
- Series benchmark evidence checked
- Australian certification source identity verified
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
Hi-MO X6 Explorer LR5-54HTH scores 68, placing 35 of 47 in the Premium Performance class against a class average of 68.9. Its strongest scoring dimension is architecture & design (84). Efficiency & Yield scores 59, the lowest pillar for this product. The class average on efficiency & yield is 71. Underlying specifications include a module efficiency of 22.5%, HPBC cell technology, 15-year product warranty backed by a 25-year performance term.