--- title: "JS Solar JS182MHC132-485 485W Solar Panel - Specs & Review | ComparePV" description: "JS Solar JS182MHC132-485 485W solar panel. Specs: 20.42% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/js-solar-js182mhc132-485" updated: 2026-09-11 --- # JS Solar JS182MHC132-485 Middle of its segment, needs the roof space 8,195 panels in the 385-585 W band, all technologies ## Identity - **Manufacturer:** JS Solar - **Model:** JS182MHC132-485 - **Series:** JS182MHC132 - **Rated power:** 485 W - **Cell technology:** Monocrystalline ## How it compares Compared against 385-585 W band, all technologies (8195 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 485 W | 460 W | Typical | | | Module efficiency | 20.42% | 21.70% | Weak - bottom 12% | 11,574 | | Power density | 204.2 | 216.8 | Weak - bottom 12% | 11,558 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight (kg) | 26.0 kg | 24.5 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 16% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.42% | 21.70% | Weak - bottom 12% | 11,574 | | Power density | 204.2 | 216.8 | Weak - bottom 12% | 11,558 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight per kWp | 53.6 | 52.5 | Typical | 7,617 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 16% | 9,798 | ### Watch out for - **204.2 watts per square metre** - Bottom 12% of the 385-585 W band, against a median of 216.8. - **20.42% module efficiency** - Bottom 12% of the 385-585 W band, against a median of 21.70%. - **25 year performance warranty** - Bottom 16% of the 385-585 W band, against a median of 30 yrs. - **Best for:** Residential, commercial, shaded-installations and hot-climate. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 485 W - **Efficiency:** 20.42 % - **Voltage at Pmax (Vmp):** 37.10 V - **Current at Pmax (Imp):** 13.07 A - **Open-circuit voltage (Voc):** 44.60 V - **Short-circuit current (Isc):** 13.68 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 132 ### Physical - **Length:** 2094 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 26.0 kg - **Area:** 2.37 m2 - **Power density:** 204.2 Wp/m2 ### Warranty and degradation - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 398 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11574 of 14005 | | Power density | 11558 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 7617 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Half-Cut + Multi-Busbar Technology** - Splitting each cell into half-cut format combined with multi-busbar (MBB) interconnection reduces internal resistance and limits power losses during partial shading. Two independent parallel sub-strings minimize output drops — a meaningful advantage for residential and commercial installations subject to intermittent shading from chimneys, antennas, or adjacent structures. - **Wide Power Range — 6 Variants** - The series spans six power bins from 485 to 510 Wp, offering system designers flexibility to match roof constraints and MPPT inverter requirements without switching product families. The 25 Wp spread allows precise string balancing across diverse BoS configurations. - **Up to 21.47% Efficiency — Above Trina Vertex** - Peak module efficiency of 21.47% clearly exceeds the Trina Solar Vertex Backsheet Monocrystalline Module (21.2%) in the 510 Wp segment, demonstrating solid production optimization for M10 half-cut monocrystalline cells. On a per-square-meter basis, the module delivers more power than the referenced Trina comparable. - **High PID Resistance** - Strong resistance to Potential Induced Degradation (PID) is especially relevant for systems using negative grounding or operating in high-humidity climates. It ensures output stability throughout the full 25-year warranty period, reducing the risk of unplanned energy yield losses. - **25-Year Linear Power Warranty** - The manufacturer provides a 25-year linear power output warranty, aligning with premium-segment standards and giving investors predictable LCOE projections. The extended warranty horizon supports project financing discussions and long-term yield modeling for installations up to several hundred kWp. ## Cons - **Not Listed as BNEF Tier-1** - JS Solar does not appear on BloombergNEF's Tier-1 module manufacturer list as of Q1 2026, which may restrict or exclude non-recourse financing for utility-scale projects at banks requiring Tier-1 status as a lending prerequisite. The impact is limited for residential prosumer installations but affects perceived bankability and system resale value. - **Efficiency Significantly Below Leading Peers** - Peak module efficiency of 21.47% falls well short of JA Solar JAM60S40 LR (23%) and Sunlike Solar SKT510M12 (22.93%) at the same 510 Wp maximum power rating. The ~1.5 percentage-point gap translates to approximately 7% more roof area or a higher module count required to achieve the same installed capacity. - **Monofacial Only — No Bifacial Option** - The JS182MHC132 series offers no bifacial variant, forgoing albedo-reflected irradiance gain — typically +5–15% additional annual energy yield on high-reflectance surfaces such as gravel, concrete, or snow. Many competing series in the 485–510 Wp tier offer bifacial equivalents without a significant price premium. ## About this series The JS Solar JS182MHC132 panel series is a response to market demand for high-efficiency modules based on M10 format monocrystalline cells. The use of **Half-Cut and Multi-Busbar technology** allows for a significant reduction in energy losses resulting from internal resistance, which directly translates into higher efficiency of the entire system. The design consisting of one hundred and thirty-two cells ensures optimal power density, allowing investors to maximize the use of available mounting surface. A key advantage of the series is its excellent **resistance to partial shading**, achieved by dividing the module into two independent sections operating in parallel. This solves the frequent problem of performance drops in residential and commercial installations exposed to periodic terrain obstacles. These modules also stand out for their **high resistance to PID degradation** and mechanical loads, guaranteeing stable operation for decades. They are intended for those seeking reliability in harsher climatic conditions, where a **low temperature coefficient of power** is of key importance. Compared to standard solutions, the JS Solar JS182MHC132 series offers better adaptation to variable irradiance, making it one of the most economical choices in the premium segment, combining innovative engineering with long-term energy security. ## Notable figures - At 20.4% efficiency, this panel is 1.4pp below the \*\*database\*\* median of 21.8% - At 204.2 W/m², this panel generates 13.8 W/m² less per unit area than \*\*database\*\* median (218.1 W/m²) - Temperature coefficient of -0.34%/°C is 0.04pp worse than \*\*database\*\* median (-0.30%/°C) - higher losses in summer heat - In the top 83% for efficiency among all N-type panels ## Questions ### What power warranty does the JS Solar JS182MHC132 series offer? The JS182MHC132 series comes with a 25-year linear power output warranty. This means the manufacturer guarantees the module will maintain a specified minimum efficiency level for a quarter of a century. The combination of M10 monocrystalline cells and half-cut cell architecture keeps degradation minimal, delivering predictable energy yields and a stable return on investment throughout the system's full operational lifetime. ### How well do JS Solar JS182MHC132 panels handle partial shading from a chimney or dormer? The JS182MHC132 series is optimized for shade tolerance. The half-cut cell technology splits each cell into two halves, and the entire module operates as two independent sections wired in parallel. This means shade from a chimney, dormer, or antenna does not shut down the whole panel — only the shaded half sees a power reduction. This is a significant practical advantage in typical residential rooftop installations. ### What is the wattage of the JS182MHC132 panel and how many do I need for a single-family home? The JS182MHC132 series has a peak power output of 510 Wp per panel. A typical single-family home consuming 3,500–5,000 kWh per year usually requires 8–12 panels, translating to a 4–6 kWp system. The exact number depends on energy consumption, roof orientation, tilt angle, and available mounting area. The high 510 Wp per-panel rating allows you to maximize system capacity on a limited roof surface. ### Is the JS Solar JS182MHC132 a bifacial panel — does it generate power from both sides? No, the JS182MHC132 series is a monofacial panel that generates electricity from the front side only. It does not feature a transparent backsheet or dual-glass construction to capture light reflected from the ground. For standard rooftop installations this is not a limitation — bifacial gain is most significant in ground-mounted systems with highly reflective surfaces such as gravel, snow, or concrete. ### What does Multi-Busbar technology do in the JS182MHC132 panels and does it actually improve performance? Multi-busbar (MBB) technology replaces a few wide busbars with many thin wire ribbons on each cell. In the JS182MHC132 panels this reduces internal resistance and lowers resistive losses at cell interconnections. The result is higher overall conversion efficiency and better performance under diffuse, overcast light conditions — which are common in Central European climates throughout a large part of the year. ### Is JS Solar a Tier 1 manufacturer and does that affect the safety of buying JS182MHC132 panels? JS Solar is not listed as a Tier 1 manufacturer by Bloomberg NEF. It is worth noting that the Tier 1 classification primarily evaluates a manufacturer's financial bankability for large project financing — not the technical quality of the modules. The JS182MHC132 series features proven half-cut and multi-busbar technology backed by a 25-year power warranty. Before purchasing, verify the availability of authorized service and distributors in your local market. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/JS182MHC132-510W-216bcdd975ff.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, +4.6 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +4.4 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +4.3 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +4.1 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +4.1 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, +4.1 pp, +5 yr warranty | | [JS Solar JS182MHC132-490](https://comparepv.com/panel/js-solar-js182mhc132-490) | 490 W | Very close match | | [JS Solar JS182MHC132-495](https://comparepv.com/panel/js-solar-js182mhc132-495) | 495 W | +10 W, +0.4 pp | | [JS Solar JS182MHC132-500](https://comparepv.com/panel/js-solar-js182mhc132-500) | 500 W | +15 W, +0.6 pp | | [JS Solar JS182MHC132-505](https://comparepv.com/panel/js-solar-js182mhc132-505) | 505 W | +20 W, +0.9 pp | | [JS Solar JS182MHC132-510](https://comparepv.com/panel/js-solar-js182mhc132-510) | 510 W | +25 W, +1.0 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +105 W, +3.4 pp, +5 yr warranty | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +100 W, +3.2 pp, +5 yr warranty | | [Bisol BGO 580](https://comparepv.com/panel/bisol-bgo-580) | 580 W | +95 W, cooler, +3.1 pp | | [Gamko New Energy GKA120N-PRO-580W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-580w) | 580 W | +95 W, +3.0 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/js-solar-js182mhc132-485 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.