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Alexus Solar ALEX-390-B-54-S 390W Full Black Module

By Alexus SolarSKU ALEX-390-B-54-S

Solar panel
Evidence score32/100
No owner reviews yet · Write the first
Rated output390 WEfficiency20 %W / sq ft18.6*Voltage (STC)30.76 VVmp · maximum powerVoc · open circuit36.62 VMax system1,500 VCurrent (STC)12.69 AImp · maximum powerIsc · short circuit13.59 ADimensionsW: 1,134 × H: 1,722 × D: 30 mmWeight20.9 kg / 46.08 lbWarrantyNot statedPower warrantyNot statedConstructionSingle-sided (unconfirmed). No bifacial claim found in the maker's documents. The site groups this module as single-sided by default; this is not a manufacturer claim.FormatNot statedCellsMonocrystalline PERC half-cell

Key specs

Units
SKU
ALEX-390-B-54-S
Official datasheet
Sources

Printed as the fifth of five module types in the electrical table.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Data sheet, Electrical Characteristics, Module Type row

Documented

Rated output (STC)
390 W
Official datasheet
Sources

The Pmax row prints STC and NMOT values for each of the five models in model order ("410 309.6 405 306.0 400 302.3 395 298.6 390 294.9"); 390 W (STC) and 294.9 W (NMOT) are the ALEX-390-B-54-S column, checked on the rendered page 2. Power tolerance is printed as 0/+5 W.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Data sheet, Electrical Characteristics, Maximum Power (Pmax/W), ALEX-390-B-54-S column

Documented

Module efficiency
20 %
Official datasheet
Sources

Printed as "20.0" once under ALEX-390-B-54-S (spanning its STC and NMOT columns) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Module Efficiency (%) row, ALEX-390-B-54-S column

Documented

Voltage at max power (Vmp)
30.76 V
Official datasheet
Sources

Printed as "30.76" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Optimum Operating Voltage (Vmp/V) row, ALEX-390-B-54-S STC column

Documented

Current at max power (Imp)
12.69 A
Official datasheet
Sources

Printed as "12.69" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Optimum Operating Current (Imp/A) row, ALEX-390-B-54-S STC column

Documented

Open-circuit voltage (Voc)
36.62 V
Official datasheet
Sources

Printed as "36.62" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Open Circuit Voltage (Voc/V) row, ALEX-390-B-54-S STC column

Documented

Short-circuit current (Isc)
13.59 A
Official datasheet
Sources

Printed as "13.59" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Short Circuit Current (Isc/A) row, ALEX-390-B-54-S STC column

Documented

Power temperature coefficient
-0.34 %/°C
Official datasheet
Sources

Printed as "-0.34%/°C" once for the series in the Temperature Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Temperature Characteristics, Temperature Coefficient of Pmax

Documented

Maximum system voltage
1,500 V
Official datasheet
Sources

Printed as 1500 V DC (IEC).

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Data sheet, Maximum System Voltage

Documented

All specs20
Rated output (STC)
390 W
Official datasheet
Sources

The Pmax row prints STC and NMOT values for each of the five models in model order ("410 309.6 405 306.0 400 302.3 395 298.6 390 294.9"); 390 W (STC) and 294.9 W (NMOT) are the ALEX-390-B-54-S column, checked on the rendered page 2. Power tolerance is printed as 0/+5 W.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Data sheet, Electrical Characteristics, Maximum Power (Pmax/W), ALEX-390-B-54-S column

Documented

Module efficiency
20 %
Official datasheet
Sources

Printed as "20.0" once under ALEX-390-B-54-S (spanning its STC and NMOT columns) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Module Efficiency (%) row, ALEX-390-B-54-S column

Documented

Voltage at max power (Vmp)
30.76 V
Official datasheet
Sources

Printed as "30.76" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Optimum Operating Voltage (Vmp/V) row, ALEX-390-B-54-S STC column

Documented

Current at max power (Imp)
12.69 A
Official datasheet
Sources

Printed as "12.69" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Optimum Operating Current (Imp/A) row, ALEX-390-B-54-S STC column

Documented

Open-circuit voltage (Voc)
36.62 V
Official datasheet
Sources

Printed as "36.62" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Open Circuit Voltage (Voc/V) row, ALEX-390-B-54-S STC column

Documented

Short-circuit current (Isc)
13.59 A
Official datasheet
Sources

Printed as "13.59" in the STC column under ALEX-390-B-54-S (the fifth of five module types) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page (STC: irradiance 1000 W/m², module temperature 25 °C, AM1.5). The NMOT column beside it prints the value at 800 W/m² and 20 °C ambient.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Electrical Characteristics, Short Circuit Current (Isc/A) row, ALEX-390-B-54-S STC column

Documented

Power temperature coefficient
-0.34 %/°C
Official datasheet
Sources

Printed as "-0.34%/°C" once for the series in the Temperature Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Page 2, Temperature Characteristics, Temperature Coefficient of Pmax

Documented

Maximum system voltage
1,500 V
Official datasheet
Sources

Printed as 1500 V DC (IEC).

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Location: Data sheet, Maximum System Voltage

Documented

Published claims and calculations, not independent test results.

Documents

1 on file
  • PDF
    Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture)OfficialAlexus SolarOfficial datasheet
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-15.

    Location: Mechanical Characteristics; Electrical Characteristics; Certifications and Tests

    Retrieved

    Alexus Solar's data sheet for its 108-cell full black PERC modules from 390 W to 410 W (file dated February 2024), captured on October 15, 2026. Its text layer interleaves the electrical table, so only values whose column can be read without doubt are used. Manufacturer claims, not independent tests.

    Archived copies

    Archived copy of a document published by Alexus Solar. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 1.00 MB

    Archived copy, unaltered, kept as a record of what Alexus Solar published. Original address: https://alexussolar.com/wp-content/uploads/2024/02/ALEX-390410-B-54-S_Feb-2024.pdf. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    2

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: f6cd1ff280cd4f966a0c0d86264efd5926e0733a296f43bb46d0f997f96c618f

    Open

Archive and older revisions

Archive and older revisions0

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

Archived documents

Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture)

Archived copy of a document published by Alexus Solar. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 1.00 MB

Archived copy, unaltered, kept as a record of what Alexus Solar published. Original address: https://alexussolar.com/wp-content/uploads/2024/02/ALEX-390410-B-54-S_Feb-2024.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
2

Embedded dates are file metadata, not independent proof of publication.

SHA-256: f6cd1ff280cd4f966a0c0d86264efd5926e0733a296f43bb46d0f997f96c618f

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Warranty

No warranty terms on file.

Sellers

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Price history

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Evidence score

32/10047% documented

The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.

Missing for this product: Product warranty needed; Power warranty needed; First-year degradation needed.

Each input is scored against the best documented value for a solar panel, and weight per watt against the best in the panel’s own format. A documented value always earns points; an undisclosed one earns 0 and is listed as missing. Certificates and unsupported claims do not add points.

Module efficiency20 %20.4 / 26.0

20 of 25.5 %, the best documented for a solar panel (printed by the maker): AIKO Comet 3N72 AIKO-A690-MDE72Mw 690W Mono-Glass Module

Printed as "20.0" once under ALEX-390-B-54-S (spanning its STC and NMOT columns) in the Electrical Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document
Power temperature coefficient-0.34 %/°C10.4 / 16.0

0.34 against 0.22 %/°C, the lowest documented for a solar panel (printed by the maker): Jackery SolarSaga 100 Air

Printed as "-0.34%/°C" once for the series in the Temperature Characteristics table on page 2 of the Alexus Solar data sheet ALEX-390~410-B-54-S (February 2024), read on the rendered page.

Official datasheet: Alexus Solar data sheet: ALEX-390~410-B-54-S, February 2024 (October 15, 2026 capture) Checked · Earlier document

Not documented, 0 points: Product warranty, Power warranty, First-year degradation.

Each input is compared with the best documented value among published solar panels, weight per watt within the same panel format · Method version 0.4

How it works

Certificates

Listing stated, none checked

No certificates on file. Certificate guide

Parts and accessories

No sourced accessories or replacement parts listed yet.

Model history

Model identity

Model
ALEX-390-B-54-S

Manufacturer SKU ALEX-390-B-54-S

No historical observations recorded yet.

Community discussions

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Recalls / legal notices

No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice

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