--- title: "Resun Solar RS8H-M-BD 535W Solar Panel - Specs & Review | ComparePV" description: "Resun Solar RS8H-M-BD 535W solar panel. Specs: 22.53% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rs8h-m-bd" updated: 2026-09-11 --- # Resun Solar RS8H-M-BD Light for its output, weak in heat 432 panels in the segment TOPCon 500-550 W ## Identity - **Manufacturer:** Resun Solar - **Model:** RS8H-M-BD - **Series:** RS8H-M-BD - **Rated power:** 535 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 500-550 W (432 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 535 W | 510 W | Strong - top 10% | | | Module efficiency | 22.53% | 22.73% | Typical | 3,982 | | Power density | 225.3 | 227.4 | Typical | 4,206 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,093 | | Weight (kg) | 25.0 kg | 27.0 kg | Strong - top 18% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.53% | 22.73% | Typical | 3,982 | | Power density | 225.3 | 227.4 | Typical | 4,206 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 20% | 6,093 | | Weight per kWp | 46.7 | 52.4 | Strong - top 18% | 1,319 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **46.7 kg per kWp** - Top 18% of the TOPCon 500-550 W segment, against a median of 52.4. ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 20% of the TOPCon 500-550 W segment, against a median of -0.290. - **Best for:** Commercial and utility-scale. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 535 W - **Efficiency:** 22.53 % - **Voltage at Pmax (Vmp):** 39.58 V - **Current at Pmax (Imp):** 13.52 A - **Open-circuit voltage (Voc):** 46.50 V - **Short-circuit current (Isc):** 14.42 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 132 - **Bifacial:** yes - **Bifacial gain:** 25.00 ### Physical - **Length:** 2094 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 25.0 kg - **Area:** 2.37 m2 - **Power density:** 225.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Annual degradation:** 0.50 % - **Output after 30 years:** 452 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3982 of 14005 | | Power density | 4206 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 1319 of 14005 | | Warranty | 21 of 14005 | ## About this series The RS8H-M-BD series combines N-type TOPCon cell technology with a half-cut design, creating a module well suited for both residential rooftops and large-scale commercial installations. Thanks to **N-type TOPCon technology**, the panel delivers lower internal power losses and more stable performance at higher temperatures, translating into higher real-world energy yield rather than just improved lab-test numbers. The use of **half-cut cells with multi-busbar technology** reduces the risk of failures caused by microcracks and broken busbars, while also increasing resistance to hot-spot effects triggered by partial shading - a common issue in installations near trees, chimneys, or neighboring buildings. As a **bifacial module**, the RS8H-M-BD captures light reflected from the ground, boosting energy output without increasing the installation footprint - an attractive advantage for investors seeking a higher return per square meter of roof or land. The panel also stands out for its **high PID resistance**, limiting power degradation over time and lowering the installation's LCOE over its lifetime. Additionally, its **reinforced mechanical structure** allows it to withstand harsh climate conditions - strong winds, heavy snow loads, and environments with elevated salt and ammonia exposure - making the series a solid choice for coastal and agricultural installations. ## Notable figures - At 22.5% efficiency, this panel is on par with typical \*\*TOPCon 500-550W\*\* modules - Power density of 225.3 W/m² matches the \*\*TOPCon 500-550W\*\* median - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 500-550W\*\* median - At 25.0 kg, this panel is 2.0 kg lighter than \*\*TOPCon 500-550W\*\* median (27.0 kg) - easier handling during installation - In the top 28% for efficiency among all TOPCon panels ## Questions ### How much power does the RS8H-M-BD panel actually deliver and what affects its energy yield? The RS8H-M-BD series reaches up to 535 Wp of maximum power. Thanks to N-type TOPCon technology, the module has lower internal power losses and performs better at high temperatures than conventional PERC panels, resulting in higher real-world energy yield, especially during summer when panels heat up on the roof. ### How does the bifacial RS8H-M-BD panel differ from a standard monofacial panel? The bifacial RS8H-M-BD panel generates energy from both sides of the module, capturing light reflected from the ground, roof, or light-colored surfaces. This increases energy output from the same installation area without additional mounting costs. The effect is especially noticeable on light gravel, a white roof, or snow during winter. ### What warranty comes with the RS8H-M-BD panels? Manufacturer Resun Solar provides a 15-year product warranty and a 30-year linear power warranty. This covers both manufacturing defects and guarantees a minimum energy output level over the long term, directly affecting the profitability of the investment. ### Are RS8H-M-BD panels suitable for coastal installations or agricultural farms? Yes, the RS8H-M-BD series features a reinforced mechanical frame resistant to strong wind and heavy snow loads, along with increased resistance to environments with elevated salinity and ammonia concentration. This makes the panel well suited for coastal installations as well as roofs on livestock buildings or areas near crop farming. ### Does the half-cut and multi-busbar technology in the RS8H-M-BD panel reduce the risk of failure under partial shading? Yes, half-cut cells with multi-busbar technology reduce the risk of microcracks and busbar breakage, while also increasing resistance to hot-spot effects caused by partial shading, for example from a chimney, tree, or neighboring building. This helps the installation perform more stably even when part of the module is not fully sunlit. ### What does PID resistance mean in RS8H-M-BD panels and why does it matter? PID resistance (Potential Induced Degradation) means the panel loses less power due to electrochemical effects caused by voltage within the installation. High PID resistance in the RS8H-M-BD series limits power degradation over time, lowering the levelized cost of energy (LCOE) throughout the system's long-term operation. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RS8H-M-BD-510-535W-552d78901dd3.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | -25 W, cooler, +2.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | -40 W, lighter, +2.3 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +25 W, cooler, +2.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | -30 W, cooler, +2.2 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +20 W, cooler, +2.1 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | -45 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | -35 W, cooler, +2.0 pp | | [Resun Solar RS8H-M-480](https://comparepv.com/panel/resun-solar-rs8h-m-480) | 480 W | -55 W, hotter, -2.3 pp | | [Resun Solar RS8H-M-485](https://comparepv.com/panel/resun-solar-rs8h-m-485) | 485 W | -50 W, hotter, -2.1 pp | | [Resun Solar RS8H-M-490](https://comparepv.com/panel/resun-solar-rs8h-m-490) | 490 W | -45 W, hotter, -1.9 pp | | [Resun Solar RS8H-M-495](https://comparepv.com/panel/resun-solar-rs8h-m-495) | 495 W | -40 W, hotter, -1.7 pp | | [Resun Solar RS8H-M-500](https://comparepv.com/panel/resun-solar-rs8h-m-500) | 500 W | -35 W, hotter, -1.5 pp | | [Resun Solar RS8H-M-505](https://comparepv.com/panel/resun-solar-rs8h-m-505) | 505 W | -30 W, hotter, -1.3 pp | | [Resun Solar RS8H-M-510](https://comparepv.com/panel/resun-solar-rs8h-m-510) | 510 W | -25 W, hotter, -1.1 pp | | [Resun Solar RS8H-M-515](https://comparepv.com/panel/resun-solar-rs8h-m-515) | 515 W | -20 W, hotter, -0.8 pp | | [Gamko New Energy GKA120N-PRO-590W](https://comparepv.com/panel/gamko-new-energy-gka120n-pro-590w) | 590 W | +55 W, heavier, +1.3 pp | --- Source: https://comparepv.com/panel/resun-solar-rs8h-m-bd Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.