--- title: "Resun Solar RS6I-395M 395W Solar Panel - Specs & Review | ComparePV" description: "Resun Solar RS6I-395M 395W solar panel. Specs: 19.63% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rs6i-395m" updated: 2026-09-11 --- # Resun Solar RS6I-395M Middle of its segment, modest efficiency 6,361 panels in the 295-495 W band, all technologies ## Identity - **Manufacturer:** Resun Solar - **Model:** RS6I-395M - **Series:** RS6I-M - **Rated power:** 395 W - **Cell technology:** Monocrystalline ## How it compares Compared against 295-495 W band, all technologies (6361 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 395 W | 430 W | Weak - bottom 22% | | | Module efficiency | 19.63% | 21.28% | Weak - bottom 14% | 12,576 | | Power density | 196.3 | 212.5 | Weak - bottom 15% | 12,564 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight (kg) | 22.5 kg | 22.5 kg | Weak - bottom 25% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.63% | 21.28% | Weak - bottom 14% | 12,576 | | Power density | 196.3 | 212.5 | Weak - bottom 15% | 12,564 | | Temperature coefficient | -0.340 | -0.300 | Typical | 8,778 | | Weight per kWp | 57.0 | 53.2 | Weak - bottom 25% | 10,956 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **19.63% module efficiency** - Bottom 14% of the 295-495 W band, against a median of 21.28%. - **196.3 watts per square metre** - Bottom 15% of the 295-495 W band, against a median of 212.5. - **57.0 kg per kWp** - Bottom 25% of the 295-495 W band, against a median of 53.2. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Tight roof space, roofs where every square metre has to count and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 395 W - **Efficiency:** 19.63 % - **Voltage at Pmax (Vmp):** 39.90 V - **Current at Pmax (Imp):** 9.92 A - **Open-circuit voltage (Voc):** 49.20 V - **Short-circuit current (Isc):** 10.25 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.320 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 144 ### Physical - **Length:** 2008 mm - **Width:** 1002 mm - **Thickness:** 35 mm - **Weight:** 22.5 kg - **Area:** 2.01 m2 - **Power density:** 196.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Annual degradation:** 0.50 % - **Output after 30 years:** 334 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12576 of 14005 | | Power density | 12564 of 14005 | | Temperature coefficient | 8778 of 14005 | | Weight | 10956 of 14005 | | Warranty | 21 of 14005 | ## About this series The RS6I-M series from Resun Solar consists of monocrystalline modules built on **half-cut** cell technology paired with a 9-busbar metallization grid, addressing one of the most common issues in PV installations: power loss caused by cell microcracks and partial shading. Splitting the cells in half and increasing the busbar count reduces internal current losses within the module and minimizes the risk of hot-spot formation, resulting in higher and more stable energy output under real-world operating conditions. The panels stand out for their **high resistance to PID**, which limits power degradation over time and keeps the levelized cost of energy (LCOE) lower throughout the module's service life. The use of tempered glass with high light transmittance delivers solid **low-light performance**, while certified resistance to salt mist and ammonia makes the series suitable for both rooftop installations and large-scale PV farms in harsh environmental conditions. An additional advantage is the **high mechanical strength** of the frame against wind and snow loads, improving installation safety. The RS6I-M series is a good fit for investors looking for proven, reliable technology at a reasonable budget, without having to reach for premium TOPCon or HJT solutions. ## Notable figures - Module efficiency of 19.6% is 2.2pp below average for \*\*database\*\* panels (median: 21.8%) - Power density of 196.3 W/m² is 21.8 W/m² below \*\*database\*\* median (218.1 W/m²) - needs more roof space - Temperature coefficient of -0.34%/°C is 0.04pp worse than \*\*database\*\* median (-0.30%/°C) - higher losses in summer heat - 22.5 kg weight - 4.0 kg lighter than \*\*database\*\* median (26.5 kg), reducing installation effort - Ranked #12576 out of 14005 panels for efficiency in the database ## Questions ### Is the Resun Solar RS6I-M series still available for purchase? The RS6I-M series has been discontinued by Resun Solar and replaced by newer models. It can currently be purchased only from remaining distributor stock, while supplies last. It's worth checking current availability with a seller, since once existing batches sell out, no further units will be produced. ### What warranty comes with Resun Solar RS6I-M panels? The manufacturer provides a 12-year product warranty covering material and workmanship defects, plus a 30-year linear power output warranty. This means the module should retain a guaranteed minimum generation level even after many years of use, giving installers and owners a predictable return on investment. ### How does half-cut technology in the RS6I-M differ from standard full-size cells? Half-cut technology splits cells in half, reducing internal current losses and resistance within the module. This helps the RS6I-M handle partial shading better - covering half a cell string doesn't knock out the entire row from production, unlike older full-cell designs. The 9-busbar metallization grid further reduces microcrack risk and improves long-term power stability. ### Are RS6I-M panels suitable for harsh environments, such as coastal installations? Yes, the RS6I-M series is certified for resistance to salt mist and ammonia corrosion, making it suitable for coastal installations and agricultural sites exposed to nitrogen compounds. High PID resistance further limits power degradation caused by leakage current, which is common in humid and salty environments. ### What is the maximum power output of the RS6I-M, and is that competitive for a monocrystalline panel? RS6I-M modules reach up to 420 Wp of maximum power. This is a solid result within the standard monocrystalline PERC half-cut segment, though lower than the latest TOPCon or HJT modules. For a typical rooftop installation, this offers a good power-to-area ratio at a reasonable purchase price. ### Is it worth choosing RS6I-M over more expensive TOPCon or HJT panels? RS6I-M is a proven, budget-conscious choice for investors who want reliability without paying premium prices - its high PID resistance and solid power warranty ensure stable performance over the years. TOPCon or HJT panels offer higher efficiency and better high-temperature performance, but at a higher cost. RS6I-M is a good fit where investment cost matters more than maximum output per square meter. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RS6I-M-390-420W-min-61c83940f2b6.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 | +45 W, cooler, +3.4 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -35 W, lighter, +3.4 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | -15 W, lighter, +3.4 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | Lighter, +3.4 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | Lighter, +3.4 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | -15 W, lighter, +3.4 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +45 W, cooler, +3.3 pp | | [Luxor Solar LX-440M/182-108+](https://comparepv.com/panel/luxor-solar-lx-440m-182-108) | 440 W | +45 W, +3.2 pp, -5 yr warranty | | [Resun Solar RS6I-390M](https://comparepv.com/panel/resun-solar-rs6i-390m) | 390 W | -0.2 pp | | [Resun Solar RS6I-400M](https://comparepv.com/panel/resun-solar-rs6i-400m) | 400 W | +0.2 pp | | [Resun Solar RS6I-405M](https://comparepv.com/panel/resun-solar-rs6i-405m) | 405 W | +10 W, +0.5 pp | | [Resun Solar RS6I-410M](https://comparepv.com/panel/resun-solar-rs6i-410m) | 410 W | +15 W, +0.8 pp | | [Resun Solar RS6I-415M](https://comparepv.com/panel/resun-solar-rs6i-415m) | 415 W | +20 W, +1.0 pp | | [Resun Solar RS6I-420M](https://comparepv.com/panel/resun-solar-rs6i-420m) | 420 W | +25 W, +1.2 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +80 W, +4.4 pp, +10 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | +75 W, +4.1 pp, +10 yr warranty | --- Source: https://comparepv.com/panel/resun-solar-rs6i-395m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.