The assessment
How it scores, by category
Market position
The data
N-type TOPCon module
Produces DC electricity at the roof. It contains no system-level power conversion or storage.
- Product role
- None in the module.
- Published range
- 470–475 W
- Electrical layer
- DC module output
- Construction
- Monofacial, Dual-glass
What the documents establish
Published evidence, source-reviewed non-disclosure and unresolved questions remain separate from the product score.
Performance guarantee: 30-year linear output
Wattage figure based on the sourced rated power (475 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. Rated 475 W at STC.
How this is modelled
Modelled from this panel’s own published first-year (1%) and annual (0.4%/yr) degradation figures, compounded against its 475 W rated (STC) output. This is a datasheet-derived estimate, not a field measurement or a warranty guarantee. Actual output also depends on site irradiance, temperature, soiling and system design.
| Year | 1 | 5 | 10 | 15 | 20 | 25 |
|---|---|---|---|---|---|---|
| Watts | 470 W | 463 W | 453 W | 444 W | 434 W | 425 W |
| % of rated | 99.0% | 97.4% | 95.4% | 93.4% | 91.4% | 89.4% |
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 highest exact current rating established for the retained AU scope. Scored model: JAM54D40-475/LR/AU · checked 2026-08-09. Evidence.
Australian warranty decision
1 product record
Read the Australian warranty as a claim pathway: the headline term is separate from remedy, labour, freight, site work, transfer and registration conditions.
JA Solar DeepBlue 4.0 Pro 54D40 LR/AU 475 W · Solar panel
Australian evidence checked 2026-08-10.
Covered7 sources
Australian warranty scope: Australia; warranty A/11-Aus names JAM54D40-xxx/LR at 420-475 W with 15-year product and 30-year performance terms. Global A/14, effective 16 June 2026, also names JAM54D40-xxx/LR at 15 and 30 years. The supersession relationship between the two live instruments requires review.
Structured claim terms: Recorded.
- Term
- 15 yr product / 30 yr performanceStated in the structured comparison
- Product remedy
- ConditionalJA Solar may repair, replace, add modules, refund current market value or provide agreed compensation.
- Labour
- Not coveredCustomer removal and reinstallation costs are excluded.
- Freight
- Not coveredShipping allocation follows the original supply contract; unconditional freight cover is not promised.
- Removal and reinstallation
- Not statedRemoval and reinstallation are borne by the customer.
- Transferability
- ConditionalTransfer is conditional on written notice, payment and acceptance by the assignee.
- Registration and conditions
- Not statedNo pre-registration is stated; claims require purchase, serial and defect evidence.
Sources & references · checked 2026-08-10
Strong evidence coverage
14 of 14 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 revision. Exact LR/AU sheet, Australian warranty A/11-Aus, global warranty A/14 effective 2026-06-16 and CER export checked 2026-08-10
- Sourced valuesData card →
Product record history
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
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
DeepBlue 4.0 Pro 54D40 LR/AU scores 61, placing 39 of 51 in the Global Tier-1 class against a class average of 65.4. Its strongest scoring dimension is performance & degradation (73), above the class average of 73. Guarantee & Backbone scores 44, the lowest pillar for this product. The class average on guarantee & backbone is 60. Underlying specifications include a module efficiency of 23.8%, N-type TOPCon cell technology, 15-year product warranty backed by a 30-year performance term.