--- title: "Resun Solar RS8L-M-DG-630 630W Solar Panel - Specs & Review | ComparePV" description: "Resun Solar RS8L-M-DG-630 630W solar panel. Specs: 22.54% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/resun-solar-rs8l-m-dg-630" updated: 2026-09-11 --- # Resun Solar RS8L-M-DG-630 Middle of its segment, weak in heat 1,086 panels in the segment TOPCon 600-650 W ## Identity - **Manufacturer:** Resun Solar - **Model:** RS8L-M-DG-630 - **Series:** RS8L-M-DG - **Rated power:** 630 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 600-650 W (1086 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 630 W | 620 W | Typical | | | Module efficiency | 22.54% | 22.80% | Typical | 3,920 | | Power density | 225.4 | 227.7 | Typical | 3,907 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 19% | 6,093 | | Weight (kg) | 32.9 kg | 32.7 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.54% | 22.80% | Typical | 3,920 | | Power density | 225.4 | 227.7 | Typical | 3,907 | | Temperature coefficient | -0.300 | -0.290 | Weak - bottom 19% | 6,093 | | Weight per kWp | 52.2 | 53.1 | Typical | 5,684 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **-0.300 %/°C temperature coefficient** - Bottom 19% of the TOPCon 600-650 W segment, against a median of -0.290. - **Best for:** Utility-scale and commercial. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 630 W - **Efficiency:** 22.54 % - **Voltage at Pmax (Vmp):** 46.75 V - **Current at Pmax (Imp):** 13.48 A - **Open-circuit voltage (Voc):** 55.95 V - **Short-circuit current (Isc):** 14.29 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:** 156 - **Bifacial:** yes ### Physical - **Length:** 2465 mm - **Width:** 1134 mm - **Thickness:** 35 mm - **Weight:** 32.9 kg - **Area:** 2.80 m2 - **Power density:** 225.4 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Annual degradation:** 0.50 % - **Output after 30 years:** 532 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 3920 of 14005 | | Power density | 3907 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 5684 of 14005 | | Warranty | 21 of 14005 | ## About this series The RS8L-M-DG series consists of dual-glass bifacial modules designed for installations where long-term energy production stability matters most. **N-type TOPCon** cells arranged in a **half-cell** layout with multi-busbar (MBB) technology reduce internal power losses and increase resistance to micro-cracks and busbar breakage, lowering the risk of failure over the module's service life. The bifacial design with a double tempered glass structure captures reflected radiation from the ground surface, boosting energy yield without expanding the installation footprint. The panels stand out for their **PID resistance**, which limits power degradation over time and translates into a lower LCOE across the entire operating period. High-transmittance, anti-reflective glass ensures solid performance even in low-light conditions, such as on cloudy days or during early morning and evening hours. Robust mechanical construction, certified for wind and snow loads, along with resistance to salt mist and ammonia exposure, make the RS8L-M-DG series a strong choice for both rooftop installations and ground-mount farms in demanding climates. It is a solution for investors seeking high reliability, stable output, and a predictable return on investment for years to come. ## Notable figures - Efficiency of 22.5% matches the \*\*TOPCon 600-650W\*\* median - Power density of 225.4 W/m² matches the \*\*TOPCon 600-650W\*\* median - At -0.30%/°C, hot weather performance is typical for \*\*TOPCon 600-650W\*\* panels - 10% bifaciality enables rear-side power generation, boosting yield by 0-2% on reflective surfaces - In the top 28% for efficiency among all TOPCon panels ## Questions ### What is the maximum power output of Resun Solar RS8L-M-DG panels and what determines it? The RS8L-M-DG series reaches a maximum power output of up to 630 Wp. This is achieved through N-type TOPCon half-cell technology combined with multi-busbar (MBB) design, which reduces current losses and increases conversion efficiency compared to older technologies such as PERC. ### How does TOPCon technology differ from PERC in the RS8L-M-DG panels? TOPCon (Tunnel Oxide Passivated Contact) is a newer generation of N-type cells that, compared to PERC, offers higher efficiency, lower power degradation over time, and better resistance to temperature and microcracks. As a result, RS8L-M-DG panels maintain more stable energy output throughout their lifespan, which lowers the levelized cost of energy (LCOE). ### Does the bifacial design of RS8L-M-DG panels actually increase energy yield? Yes. The bifacial construction with dual tempered glass captures light reflected off the ground surface, such as a light-colored roof, gravel, or snow, generating additional energy from the rear side of the module without increasing the installation footprint. Actual gains depend on ground albedo and mounting height but typically range from a few to over ten percent more annual energy. ### What is the warranty on Resun Solar RS8L-M-DG panels? The manufacturer provides a 15-year product warranty and a 30-year power output warranty. This means long-term protection for both mechanical integrity and guaranteed performance levels, giving investors a predictable return on investment over the panel's lifespan. ### Are RS8L-M-DG panels suitable for ground-mounted farms in demanding climate conditions? Yes, the RS8L-M-DG series features a robust mechanical structure certified for wind and snow loads, as well as resistance to salt mist and ammonia. These characteristics make the panels well-suited for both rooftop and large-scale ground-mounted installations, including coastal and agricultural regions. ### Are RS8L-M-DG panels resistant to PID degradation and what does that mean in practice? Yes, the modules have certified PID (Potential Induced Degradation) resistance, which prevents power loss caused by voltage potential differences within the array. This resistance helps the panel maintain its rated performance over time, reducing energy output decline and lowering the real cost of energy produced over the system's lifetime. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/RS8L-M-DG-595-630W-RETIE-version-eed9327f8190.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | Cooler, lighter, +2.7 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +50 W, cooler, +2.7 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +45 W, cooler, +2.5 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | Cooler, lighter, +2.5 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +40 W, lighter, +2.3 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +40 W, lighter, +2.3 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | Cooler, lighter, +2.3 pp | | [Resun Solar RS8L-M-DG-595](https://comparepv.com/panel/resun-solar-rs8l-m-dg-595) | 595 W | -35 W, -1.2 pp | | [Resun Solar RS8L-M-DG-600](https://comparepv.com/panel/resun-solar-rs8l-m-dg-600) | 600 W | -30 W, -1.1 pp | | [Resun Solar RS8L-M-DG-605](https://comparepv.com/panel/resun-solar-rs8l-m-dg-605) | 605 W | -25 W, -0.9 pp | | [Resun Solar RS8L-M-DG-610](https://comparepv.com/panel/resun-solar-rs8l-m-dg-610) | 610 W | -20 W, -0.7 pp | | [Resun Solar RS8L-M-DG-615](https://comparepv.com/panel/resun-solar-rs8l-m-dg-615) | 615 W | -15 W, -0.5 pp | | [Resun Solar RS8L-M-DG-620](https://comparepv.com/panel/resun-solar-rs8l-m-dg-620) | 620 W | -10 W, -0.4 pp | | [Resun Solar RS8L-M-DG-625](https://comparepv.com/panel/resun-solar-rs8l-m-dg-625) | 625 W | Very close match | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +70 W, cooler, +2.5 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +65 W, cooler, +2.4 pp | --- Source: https://comparepv.com/panel/resun-solar-rs8l-m-dg-630 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.