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JS Solar Brand review

JS182MHC108-400

400 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 12,793 of 14,005
Compare panels Datasheet PDF
Power (Wp)
400
Weak · bottom 24%
Efficiency (%)
20.50
Typical · median 21.30%
Density (Wp/m²)
204.6
Typical · median 212.6
Temp (%/°C)
-0.340
Typical · median -0.300
Weight (kg)
21.5
Typical · median 22.5 kg
Warranty (yrs)
25
Weak · bottom 19%

The JS Solar JS182MHC108 series redefines efficiency standards in the residential photovoltaic installation segment, focusing on maximum power density while maintaining optimal dimensions. A key distinguishing feature of these modules is the use of half-cut cells (Half-Cut), which drastically reduces losses resulting from internal resistance and partial shading of the roof surface. The use of modern 182 mm wafers in a 108-cell configuration allows for high energy yields even on roofs with complex geometry and limited surface area. Innovative multi-busbar technology shortens the electron flow path, leading to lower thermal loads and a longer component lifespan. This solution is primarily dedicated to individual investors seeking a balance between aesthetics and reliability in harsh weather conditions. What sets the JS182MHC108 series apart from the competition is its high module efficiency and excellent temperature coefficient, ensuring stable operation on hot days. By choosing this product, the user receives a technologically advanced system resistant to the PID effect, which guarantees the maintenance of nominal power for decades of operation without the need for frequent inspections and unplanned service costs. This is an optimal choice for modern single-family housing, where every square meter of roof space counts.

Ranking

6,519 panels in the 300-500 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 20.50% 21.30% Typical 11,308
Power density 204.6 212.6 Typical 11,504
Temperature coefficient -0.340 -0.300 Typical 8,778
Weight per kWp 53.8 53.2 Typical 7,774
Performance warranty 25 yrs 30 yrs Weak · bottom 19% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 4 caution
Best for

Residential, shaded-installations and hot-climate.

Not ideal for

Owners who want a long output guarantee.

Watch-outs
25 year performance warranty

Bottom 19% of the 300-500 W band, against a median of 30 yrs.

What owners get
Half-Cut 108-cell technology

Splitting cells in half reduces internal resistance by ~50% compared to standard cells, cutting resistive losses and improving output under partial shading by 10–15%. The 108-cell layout on a 182 mm wafer keeps module dimensions (1724×1134×35 mm, 21.5 kg) installer-friendly for residential rooftops.

Favorable temperature coefficient

Pmax temperature coefficient is -0.34%/°C, placing this series at the better end of the PERC range (typical PERC: -0.35 to -0.37%/°C). At a cell temperature of 70°C, power loss is ~16.6% instead of ~17.5–18.5% for lower-performing PERC modules, resulting in measurably higher summer energy yield.

Certified PID resistance

The series carries a positive PID test result (IEC 62804), ensuring long-term power stability in high-humidity environments and at system voltages up to 1000 V DC. This eliminates the risk of efficiency degradation of several percentage points common in non-certified modules.

25-year linear power warranty with confirmed retention

The manufacturer guarantees ≥84.8% of rated power after 25 years, matching the level offered by direct peers in this segment (AE Solar AURORA AE MD-108, Aptos Solar DNA 108-Monofacial). The warranty covers both product (10 years) and power output, backed by IEC 61215 and IEC 61730 certification.

Trade-offs
Not BNEF Tier-1 bankable

JS Solar does not appear on the BNEF Tier-1 list (Q1 2026), unlike suppliers behind some peer-comparable products. For installations financed via bank loans or leasing, this can be a formal barrier — lenders typically require modules from manufacturers with confirmed bankability status.

PERC technology in the TOPCon transition era

The series is built on mono PERC, while the market in 2025–2026 is shifting rapidly to N-type TOPCon (temperature coefficient: -0.29 to -0.30%/°C vs. -0.34%/°C for this series, plus lower LID losses). Choosing this series means selecting proven but technically regressing technology, which may reduce the residual value of the installation after 10+ years.

Monofacial-only design

The JS182MHC108 series is available only in monofacial configuration (is_bifacial: false), while the direct peer LEDVANCE M395~415P54LM-BF-F3 (415 Wp, 21.25%) offers bifacial technology. On rooftops with a light-colored or membrane substrate, bifacial modules can deliver an additional 5–15% yield from reflected irradiance — an advantage this series structurally cannot provide.

Notes from the database
  • Module efficiency of 20.5% is 1.3pp below average for database panels (median: 21.8%)
  • Power density of 204.6 W/m² is 13.5 W/m² below database median (218.1 W/m²) - needs more roof space
  • -0.34%/°C temperature coefficient - 0.04pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • Weight of 21.5 kg (5.0 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • #11308 for efficiency, #8778 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 400 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.50 % Typical Segment median 21.30%
Vmpp · Impp 30.85 V · 12.97 A Operating point at max power
Voc · Isc 37.04 V · 13.63 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1724×1134×30 mm · 1.96 m² of roof
Weight 21.5 kg Typical Typical · median 22.5 kg
Cells 108 Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.300 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Performance warranty 25 years Weak bottom 19% · median 30 yrs
End-of-warranty output 84.8 % Equals 328 W guaranteed
Degradation 2.00 → 0.55 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.340 %/°C against a segment median of -0.300
-

Alternatives

All JS Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
JS Solar JS182MHC108-400 400 W 20.50% -0.340 21.5 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg Cooler, +2.6 pp, +5 yr warranty
JST-EDMH-(445-465)W-TD (450W class) 450 W 23.05% -0.300 20.5 kg +50 W, +2.6 pp, +5 yr warranty
QNN182-HG450-54 450 W 23.04% -0.290 24.0 kg +50 W, cooler, +2.5 pp
HY440-N108BDD 450 W 23.04% -0.300 23.5 kg +50 W, +2.5 pp, +5 yr warranty
NLBK-27-450 450 W 23.04% -0.300 22.9 kg +50 W, +2.5 pp, +5 yr warranty
RS41-450NBG-E3 450 W 23.04% -0.290 24.5 kg +50 W, cooler, +2.5 pp
JS182MHC108-390 390 W 20.00% -0.340 21.5 kg -10 W, -0.5 pp
JS182MHC108-395 395 W 20.20% -0.340 21.5 kg -0.3 pp
JS405M108 405 W 21.70% -0.300 19.0 kg Cooler, lighter, +1.2 pp
JS182MHC108-405 405 W 20.70% -0.340 21.5 kg Very close match
JS410M108HBC 410 W 21.00% -0.290 20.8 kg +10 W, cooler, +0.5 pp
JS182MHC108-410 410 W 20.97% -0.340 21.5 kg +10 W, +0.5 pp
JS415M108HBC 415 W 21.30% -0.290 20.8 kg +15 W, cooler, +0.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +110 W, cooler, +4.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +95 W, cooler, +4.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +105 W, cooler, +4.2 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1917 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the power output of the JS Solar JS182MHC108 panels, and is it enough to power a typical single-family home?
Each module in the JS182MHC108 series delivers a maximum output of 415 Wp. A typical single-family home consuming 4,000–5,000 kWh per year usually requires 8–12 modules, resulting in a 3.3–5 kWp system. The high module efficiency combined with half-cut cell technology means that even a smaller roof area can support an installation that covers a substantial share of household electricity demand.
What is the half-cut cell technology used in the JS182MHC108 series, and does it actually improve energy yield?
Half-cut technology splits each solar cell in two, reducing internal resistance and minimizing resistive heat losses. In practice, the JS182MHC108 handles partial shading — from a chimney or dormer, for example — more effectively, because a shaded half-cell does not shut down the entire module string. The result is higher annual energy yield and lower sensitivity to the unfavorable roof conditions common in residential installations.
What warranty does the JS Solar JS182MHC108 carry, and what exactly does it cover?
The manufacturer provides a 25-year linear power warranty, guaranteeing that each panel retains a defined percentage of its rated output over the entire period. A standard product warranty covering material and manufacturing defects also applies. Before purchasing, verify current warranty terms with your local distributor — JS Solar is not Bloomberg NEF Tier 1 certified, which may be relevant when assessing long-term financial and service risk.
Are the JS182MHC108 panels protected against PID, and how does that affect long-term system performance?
Yes, the JS182MHC108 series is designed to resist PID (Potential Induced Degradation), a gradual power loss caused by stray current leaking through the mounting structure into the cells. PID resistance is especially important in high-humidity climates and high-voltage string configurations. This built-in protection ensures the modules maintain their rated output for decades without requiring additional service interventions or unplanned maintenance costs.
Will the JS182MHC108 series perform well on a pitched roof with a chimney or dormers where available space is limited?
Yes, the 108-cell, 182 mm wafer configuration delivers high power in a relatively compact module footprint, making the JS182MHC108 a strong fit for roofs with limited usable area. The half-cut cell technology further reduces the impact of partial shading from chimneys, dormers, or satellite dishes — keeping energy losses low even when portions of the array are intermittently shaded throughout the day.
Is JS Solar a Tier 1 manufacturer, and is investing in their panels worthwhile?
JS Solar is not listed as a Tier 1 manufacturer by Bloomberg NEF, meaning it carries lower recognition in global financial risk assessments. This does not necessarily indicate inferior product quality — the JS182MHC108 series features proven half-cut cells, a multi-busbar architecture, PID protection, and a 25-year power warranty. We recommend comparing the offer against Tier 1 alternatives and confirming local warranty service availability with a distributor before making a purchase decision.
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