--- title: "CSUN CSUN395-72M 395W Solar Panel - Specs & Review | ComparePV" description: "CSUN CSUN395-72M 395W solar panel. Specs: 19.92% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/csun-csun395-72m" updated: 2026-09-11 --- # CSUN CSUN395-72M Middle of its segment, weak in heat 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** CSUN - **Model:** CSUN395-72M - **Series:** Galaxy Series - **Rated power:** 395 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 395 W | 380 W | Strong - top 12% | | | Module efficiency | 19.92% | 19.90% | Typical | 12,320 | | Power density | 199.2 | 199.0 | Typical | 12,307 | | Temperature coefficient | -0.370 | -0.350 | Weak - bottom 16% | 13,081 | | Weight (kg) | 22.1 kg | 21.4 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.92% | 19.90% | Typical | 12,320 | | Power density | 199.2 | 199.0 | Typical | 12,307 | | Temperature coefficient | -0.370 | -0.350 | Weak - bottom 16% | 13,081 | | Weight per kWp | 55.9 | 55.8 | Typical | 10,283 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **-0.370 %/°C temperature coefficient** - Bottom 16% of the PERC 350-400 W segment, against a median of -0.350. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 395 W - **Efficiency:** 19.92 % - **Voltage at Pmax (Vmp):** 40.80 V - **Current at Pmax (Imp):** 9.68 A - **Open-circuit voltage (Voc):** 49.10 V - **Short-circuit current (Isc):** 10.30 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.370 %/degC - **Temperature coefficient of Voc:** -0.300 %/degC - **Temperature coefficient of Isc:** 0.060 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 72 ### Physical - **Length:** 1979 mm - **Width:** 1002 mm - **Thickness:** 35 mm - **Weight:** 22.1 kg - **Area:** 1.98 m2 - **Power density:** 199.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 82.6 % - **First-year degradation:** 3.00 % - **Annual degradation:** 0.60 % - **Output after 30 years:** 314 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12320 of 14005 | | Power density | 12307 of 14005 | | Temperature coefficient | 13081 of 14005 | | Weight | 10283 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Competitive efficiency up to 20.17%** - The top variant in the series (CSUN400-72M-158) reaches 20.17% efficiency, placing it near the top of the segment — on par with MWG Mono (20.12%) and clearly ahead of DMEGC GH400M10T-B48HST (15.48%), despite relying on older PERC rather than N-type cell technology. - **Positive power tolerance** - Panels never fall below the nameplate rated power, eliminating the risk of underestimated energy yield during system design and simplifying inverter sizing. - **Salt mist and ammonia corrosion certification** - Modules pass IEC 61701 (salt mist) and IEC 62716 (ammonia corrosion) testing, making them a safe choice for coastal installations and livestock farms, where standard panels degrade faster. - **High wind and snow load resistance** - The certified frame construction for elevated mechanical loads is practically relevant for installations in Polish regions with heavy snowfall, reducing the risk of microcracks and frame failure. - **25-year linear power warranty backed by Munich Re** - The 25-year linear power warranty, reinsured by Munich Re, gives investors additional financial security independent of the manufacturer's own solvency — an important factor for bank-financed projects. ## Cons - **Wide efficiency spread down to 16.75%** - The lowest-power variant in the series achieves only 16.75% efficiency — well below peer comparables like Heliene (20.5%) or MWG (20.12%). Choosing a base variant means significantly lower power density per m² of roof. - **12-year product warranty below the rising standard** - While the tier-1 market increasingly offers 15-year product warranties, the Galaxy series remains at 12 years, which may be less attractive to investors comparing offers for project bankability. - **No bifacial variant available** - The series relies exclusively on PERC technology without a bifacial option, missing the additional energy gain (typically 5-10%) from ground albedo available in competing bifacial modules. ## About this series The Galaxy series consists of standard polycrystalline CSUN modules built on **PERC** technology, delivering solid conversion efficiency without the price premium of monocrystalline alternatives. It's a fit for installers and investors looking for a proven, predictable product with a strong price-to-performance ratio rather than the latest experimental cell technology. The modules stand out with a **positive power tolerance**, meaning each panel never underperforms the rating stated on its datasheet, which simplifies system sizing and reduces the risk of underestimated energy yield. The panels have passed rigorous **salt mist and ammonia corrosion resistance** testing, making them a solid choice for coastal installations as well as agricultural sites exposed to ammonia vapors. The frame and structure are certified for high **wind and snow load** ratings, a relevant factor for installations in more demanding climate conditions found across much of Poland. A favorable temperature coefficient keeps output more stable during hot days, while improved low-light performance boosts energy harvest on overcast days. The product is backed by a **25-year linear power output warranty** reinsured by Munich Re, adding an extra layer of long-term financial security to the investment. ## Notable figures - Efficiency of 19.9% matches the \*\*PERC 0-400W\*\* median - At 199.2 W/m² power density, this panel generates 4.8 W/m² more per unit area than \*\*PERC 0-400W\*\* median (194.4 W/m²) - At -0.37%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - At 22.1 kg, this panel is 1.6 kg heavier than the \*\*PERC 0-400W\*\* median (20.5 kg) - more demanding for installation crews - In the top 88% for efficiency among all PERC panels ## Questions ### What is the maximum power output of the CSUN Galaxy Series panel? Panels in the Galaxy Series reach a maximum power output of up to 400 Wp. Thanks to PERC technology and positive power tolerance, the panel practically never generates less energy than its rated value, making it easier to accurately design a system and predict annual energy yields. ### How does the PERC technology in the CSUN Galaxy Series differ from standard polycrystalline cells? PERC technology adds a passivation layer to the back of the cell, reflecting unused light back into the silicon structure and increasing conversion efficiency. In the Galaxy Series, this delivers efficiency close to more expensive monocrystalline modules while keeping the lower price typical of polycrystalline technology. ### What warranty comes with CSUN Galaxy Series panels? The manufacturer provides a 12-year product warranty and a 25-year linear power warranty. The power warranty is additionally backed by Munich Re reinsurance, meaning the payout is guaranteed even if the manufacturer faces financial difficulties, giving investors real security over the entire lifespan of the installation. ### Are CSUN Galaxy Series panels suitable for farms or coastal installations? Yes, the modules have passed rigorous salt mist and ammonia corrosion resistance testing, making them a good choice both for coastal installations exposed to salty air and for farms where ammonia fumes from livestock can accelerate corrosion of standard frames and connectors. ### Can CSUN Galaxy Series withstand heavy snow loads in winter? Yes, the module construction is certified for high wind and snow loads, which matters particularly in Poland, where a significant layer of snow can accumulate on roof surfaces during winter. The reinforced frame allows safe operation in harsher climate conditions without risk of structural damage. ### Do CSUN Galaxy Series panels perform well on cloudy days and in low-light conditions? Yes, the modules feature improved low-irradiance performance, resulting in higher energy yields on cloudy days compared to standard panels. Combined with a good temperature coefficient, this ensures more stable energy production throughout the year, regardless of time of day or weather conditions. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/CSUN400-72M-158-1c1bcd859ed2.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | Cooler, +3.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +3.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +3.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | Lighter, +3.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | Lighter, +3.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +3.1 pp, +5 yr warranty | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | Cooler, +3.0 pp, +5 yr warranty | | [Luxor Solar LX-440M/182-108+](https://comparepv.com/panel/luxor-solar-lx-440m-182-108) | 440 W | +45 W, cooler, +2.9 pp | | [CSUN CSUN375-72M](https://comparepv.com/panel/csun-csun375-72m) | 375 W | -20 W, -1.0 pp | | [CSUN CSUN380-72M](https://comparepv.com/panel/csun-csun380-72m) | 380 W | -15 W, -0.8 pp | | [CSUN CSUN385-72M](https://comparepv.com/panel/csun-csun385-72m) | 385 W | -10 W, -0.5 pp | | [CSUN CSUN390-72M](https://comparepv.com/panel/csun-csun390-72m) | 390 W | -0.2 pp | | [CSUN CSUN400-72M](https://comparepv.com/panel/csun-csun400-72m) | 400 W | +0.2 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | Cooler, +4.1 pp, +15 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | Cooler, +3.8 pp, +15 yr warranty | | [Maxeon SPR-MAX7-465](https://comparepv.com/panel/maxeon-spr-max7-465) | 465 W | Cooler, +3.6 pp, +15 yr warranty | --- Source: https://comparepv.com/panel/csun-csun395-72m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.