--- title: "Resun Solar RS8H-M-495 495W Solar Panel - Specs & Review | ComparePV" description: "Resun Solar RS8H-M-495 495W solar panel. Specs: 20.85% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rs8h-m-495" updated: 2026-09-11 --- # Resun Solar RS8H-M-495 Middle of its segment, weak in heat 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** Resun Solar - **Model:** RS8H-M-495 - **Series:** RS8H-M - **Rated power:** 495 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 495 W | 465 W | Strong - top 4% | | | Module efficiency | 20.85% | 22.52% | Weak - bottom 2% | 10,362 | | Power density | 208.5 | 225.2 | Weak - bottom 2% | 10,410 | | Temperature coefficient | -0.350 | -0.290 | Weak - bottom 2% | 10,419 | | Weight (kg) | 26.3 kg | 24.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.85% | 22.52% | Weak - bottom 2% | 10,362 | | Power density | 208.5 | 225.2 | Weak - bottom 2% | 10,410 | | Temperature coefficient | -0.350 | -0.290 | Weak - bottom 2% | 10,419 | | Weight per kWp | 53.1 | 52.2 | Typical | 6,936 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-0.350 %/°C temperature coefficient** - Bottom 2% of the TOPCon 450-500 W segment, against a median of -0.290. Ranked 10,419th in the whole database. - **208.5 watts per square metre** - Bottom 2% of the TOPCon 450-500 W segment, against a median of 225.2. Ranked 10,410th in the whole database. - **20.85% module efficiency** - Bottom 2% of the TOPCon 450-500 W segment, against a median of 22.52%. Ranked 10,362nd in the whole database. - **Best for:** Commercial and utility-scale. - **Not ideal for:** Hot climates, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 495 W - **Efficiency:** 20.85 % - **Voltage at Pmax (Vmp):** 38.17 V - **Current at Pmax (Imp):** 12.97 A - **Open-circuit voltage (Voc):** 45.46 V - **Short-circuit current (Isc):** 13.86 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/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 technology:** TOPCon - **Cell count:** 132 ### Physical - **Length:** 2094 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 26.3 kg - **Area:** 2.37 m2 - **Power density:** 208.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Annual degradation:** 0.50 % - **Output after 30 years:** 418 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10362 of 14005 | | Power density | 10410 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 6936 of 14005 | | Warranty | 21 of 14005 | ## About this series The RS8H-M series from Resun Solar combines monocrystalline cells built with **N-type TOPCon technology** and a half-cut cell design, effectively minimizing power losses caused by shading and the hot-spot effect. The **multi-busbar 9-11 BB grid** reduces internal current losses and boosts conversion efficiency, while also lowering the risk of microcracks and busbar breakage, resulting in a longer service life for the installation. The panel also stands out for its **strong resistance to PID degradation**, limiting power loss over time and delivering higher energy yield with a lower LCOE. A 3.2mm tempered glass with anti-reflective coating ensures solid performance even under low-light conditions, and certified **mechanical strength** against wind and snow loads makes it suitable for demanding climates, including areas with elevated salt mist and ammonia exposure. RS8H-M is built for commercial and industrial investors who need high reliability, stable energy output over decades, and low annual power degradation, backed by an extended manufacturer warranty. ## Notable figures - Efficiency of 20.9% is 1.7pp below the \*\*TOPCon 450-500W\*\* median (22.5%) - 208.5 W/m² power density is 16.7 W/m² below \*\*TOPCon 450-500W\*\* median (225.2 W/m²) - requires larger installation area - At -0.35%/°C, loses 0.06pp more power per degree than \*\*TOPCon 450-500W\*\* median (-0.29%/°C) - At 26.3 kg (2.3 kg above \*\*TOPCon 450-500W\*\* median of 24.0 kg), requires checking roof load capacity - #10362 for efficiency, #10419 for temperature performance out of 14005 panels ## Questions ### What is the maximum power output of the RS8H-M series panel? RS8H-M series panels reach a maximum power output of up to 515 Wp. This is achieved by combining N-type TOPCon monocrystalline cells with a half-cut cell layout and a 9-11 busbar (BB) grid, which together reduce current losses and increase energy conversion efficiency. ### How does TOPCon technology in the RS8H-M differ from standard PERC panels? The N-type TOPCon cells used in RS8H-M feature lower power degradation over time and higher efficiency than older P-type PERC cells. An additional passivation layer reduces charge carrier recombination, resulting in higher energy yield, better performance at high temperatures, and a lower LCOE over the system's lifetime. ### What warranty does Resun Solar offer on the RS8H-M panels? The manufacturer provides a 15-year product warranty and a 30-year linear power output warranty. This means that even after three decades of operation, the panel should retain a significant portion of its original performance, making this series a solid long-term investment for commercial and industrial customers. ### Are RS8H-M panels suitable for harsh climate conditions, such as coastal installations? Yes, RS8H-M modules have certified mechanical resistance to wind and snow loads and are resistant to elevated salt mist and ammonia concentrations. This makes them suitable for both coastal areas and locations near agricultural facilities, where standard panels could otherwise corrode more quickly. ### Is the RS8H-M a bifacial panel that generates power from its rear side? No, the RS8H-M series is a monofacial panel, designed to generate power only from its front side. Investors seeking additional energy yield from ground reflection, such as ground-mount installations on light-colored surfaces, should consider alternative bifacial series from the manufacturer's lineup. ### What does PID resistance mean for RS8H-M panels and why does it matter? PID (Potential Induced Degradation) is a power loss phenomenon caused by voltage potential differences within a system, especially common in large installations with high string voltages. The RS8H-M's high PID resistance limits this effect, ensuring more stable energy production throughout the panel's lifetime and reducing the risk of unexpected performance drops. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RS8H-M-480-515W-cbff590170ad.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +4.1 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.9 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +3.8 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +3.6 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +3.6 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +3.6 pp | | [Resun Solar RS8H-M-480](https://comparepv.com/panel/resun-solar-rs8h-m-480) | 480 W | -15 W, -0.6 pp | | [Resun Solar RS8H-M-485](https://comparepv.com/panel/resun-solar-rs8h-m-485) | 485 W | -10 W, -0.4 pp | | [Resun Solar RS8H-M-490](https://comparepv.com/panel/resun-solar-rs8h-m-490) | 490 W | -0.2 pp | | [Resun Solar RS8H-M-500](https://comparepv.com/panel/resun-solar-rs8h-m-500) | 500 W | +0.2 pp | | [Resun Solar RS8H-M-505](https://comparepv.com/panel/resun-solar-rs8h-m-505) | 505 W | +10 W, +0.4 pp | | [Resun Solar RS8H-M-510](https://comparepv.com/panel/resun-solar-rs8h-m-510) | 510 W | +15 W, +0.6 pp | | [Resun Solar RS8H-M-515](https://comparepv.com/panel/resun-solar-rs8h-m-515) | 515 W | +20 W, +0.8 pp | | [Resun Solar RS8H-M-BD](https://comparepv.com/panel/resun-solar-rs8h-m-bd) | 535 W | +40 W, cooler, +1.7 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +95 W, cooler, +3.0 pp | | [Gamko New Energy GKA120N-PRO-585W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-585w) | 585 W | +90 W, cooler, +2.8 pp | --- Source: https://comparepv.com/panel/resun-solar-rs8h-m-495 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.