--- title: "DMEGC DM450M10RT-54HBB 450W Solar Panel - Specs & Review | ComparePV" description: "DMEGC DM450M10RT-54HBB 450W solar panel. Specs: 22.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dmegc-hengdian-group-dmegc-magnetics-co-ltd-dm450m10rt-54hbb" updated: 2026-09-11 --- # DMEGC DM450M10RT-54HBB Light for its output, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** DMEGC - **Model:** DM450M10RT-54HBB - **Series:** INFINITY RT (DMxxxM10RT-54HBB) - **Rated power:** 450 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) | 450 W | 465 W | Weak - bottom 9% | | | Module efficiency | 22.50% | 22.52% | Typical | 4,222 | | Power density | 225.2 | 225.2 | Typical | 4,225 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 20.6 kg | 24.0 kg | Strong - top 12% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.50% | 22.52% | Typical | 4,222 | | Power density | 225.2 | 225.2 | Typical | 4,225 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 45.8 | 52.2 | Strong - top 12% | 883 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **45.8 kg per kWp** - Top 12% of the TOPCon 450-500 W segment, against a median of 52.2. - **Best for:** Residential, commercial, shaded-installations and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 450 W - **Efficiency:** 22.50 % - **Voltage at Pmax (Vmp):** 33.91 V - **Current at Pmax (Imp):** 13.27 A - **Open-circuit voltage (Voc):** 40.25 V - **Short-circuit current (Isc):** 14.17 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.048 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 20.6 kg - **Area:** 2.00 m2 - **Power density:** 225.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 393 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 4222 of 14005 | | Power density | 4225 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 883 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Temperature Coefficient of -0.29%/°C** - N-type TOPCon cells achieve a Pmax temperature coefficient of -0.29%/°C, whereas standard PERC modules typically range from -0.35 to -0.40%/°C. In the Polish climate, where module temperatures can reach 65–70°C during summer, this translates to a real-world daily energy yield improvement of approximately 3–5% compared to previous-generation technology. - **30-Year Power Warranty with 87.4% Retention** - The manufacturer guarantees a minimum of 87.4% of nominal power output after 30 years of operation, with a maximum annual degradation rate of 0.4% (from year 2 onward) and 99% retention in year one. For comparison, typical Tier-1 PERC modules — such as the Zonergy ZPM MH3-72 from the same peer group — operate under a standard 25-year power warranty. The DMEGC INFINITY RT therefore provides investors with five additional years of real warranty protection. - **Module Efficiency of 22–23% — Above Peer Median** - The series delivers module efficiency of 22–23%, clearly surpassing the Zonergy ZPM MH3-72 (21.16%) from the same peer comparison group, and placing it on par with the Risen RSM96-11-440-460BNDG (23%) and the SunKean SKT440~460M12-96D4 (23.02%). For rooftop installations with limited surface area, this means higher energy yield per m² of roof space. - **Bankable Manufacturer — BNEF Tier 1 (Confirmed Q3 2025)** - DMEGC Solar maintains continuous Tier-1 status in the BloombergNEF module manufacturer ranking, with its most recent confirmation in Q3 2025. For projects financed through loans or leasing arrangements, bankability is a prerequisite for obtaining non-recourse financing; it also eliminates the residual risk associated with manufacturer warranty claims. - **Listed in TaiyangNews Top Solar Modules 2024** - The INFINITY RT series was included in the prestigious Top Solar Modules list (TaiyangNews, August 2024), confirming independent verification of its specifications by an industry editorial body. The list is limited exclusively to modules that meet rigorous performance thresholds and technical documentation quality standards. ## Cons - **Monofacial Only — No Rear-Side Energy Gain** - The DMxxxM10RT-54HBB series does not leverage bifaciality, whereas DMEGC offers a parallel bifacial glass-glass variant — the DMxxxM10RT-B54HBB — built on the same cell platform. For installations with a high-albedo surface (white membrane, gravel ballast), the energy yield penalty compared to the bifacial equivalent can reach 5–15% annually. In a typical rooftop mounting configuration the difference is marginal, but the limitation is worth factoring into system design. ## About this series The DMEGC INFINITY RT (DMxxxM10RT-54HBB) series was designed for rooftop installations, where achieving high yield from limited surfaces, longevity, and predictable performance year after year are key. The main advantage is the application of **N-type cell technology**, which better withstands operating conditions and supports stable energy production even in the long term. The modules utilize a modern architecture with cut cells, helping to minimize losses during partial shading and improving string performance. In practice, INFINITY RT addresses typical investor challenges: it minimizes the impact of heat thanks to its **favorable temperature coefficient**, and increases production during transition periods due to its **excellent low-light performance**. The glass-glass construction supports resistance to microcracking and atmospheric conditions, while **high PID resistance** facilitates maintaining parameters in more challenging environments. This is an excellent choice for homes, small businesses, and projects where reliability and high system value over time are prioritized. ## Notable figures - Efficiency of 22.5% matches the \*\*TOPCon 450-500W\*\* median - At 225.2 W/m² power density, roof space requirements are typical for \*\*TOPCon 450-500W\*\* panels - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 450-500W\*\* median - 20.6 kg weight - 3.4 kg lighter than \*\*TOPCon 450-500W\*\* median (24.0 kg), reducing installation effort - In the top 30% for efficiency among all TOPCon panels ## Questions ### What is TOPCon technology in DMEGC INFINITY RT panels and how does it differ from mainstream PERC cells? TOPCon (Tunnel Oxide Passivated Contact) is an N-type next-generation cell architecture that succeeds PERC. In the INFINITY RT series, this translates to module efficiency exceeding 22% and an annual degradation rate not exceeding 0.4% from the second year of operation onward. After 30 years, the module retains a minimum of 87.4% of its nominal power output. TOPCon cells also demonstrate superior resilience to high temperatures and partial shading compared to standard PERC, resulting in higher annual energy yield under Central European climate conditions. ### What warranty coverage applies to DMEGC INFINITY RT panels and what does it specifically include? The INFINITY RT series is backed by a 25-year product warranty covering material and workmanship defects, as well as a 30-year linear power output warranty. The product datasheet guarantees that after 30 years the module will retain at least 87.4% of its rated power, with a maximum annual degradation of 0.4% from year two onward. This represents one of the longest power warranties offered by PV manufacturers in the European market. ### Are DMEGC INFINITY RT 460W panels suitable for a standard pitched roof installation in Poland? Yes. The INFINITY RT 460 Wp variant measures 1762 × 1134 × 30 mm and weighs approximately 20.6 kg, conforming to the standard M10 format compatible with widely used racking systems for pitched roofs, including Schletter, K2, Esdec, and others. The low module weight simplifies handling and transport across the roof surface during installation. The glass-glass construction performs well under the snow and wind loads characteristic of Polish climate conditions. ### How do DMEGC INFINITY RT panels perform in high heat and overcast conditions? TOPCon technology delivers a power temperature coefficient of approximately −0.29%/°C, representing significantly lower thermal losses at elevated temperatures compared to PERC modules, which typically exhibit −0.35%/°C. During summer months, when panel operating temperatures exceed 70 °C, this difference can translate to several percentage points of additional daily energy production. The INFINITY RT series is also optimized for low-irradiance performance, enabling better utilization of diffuse light on overcast days. ### Is DMEGC a reliable manufacturer and is its warranty enforceable in Poland? DMEGC Solar is a Chinese manufacturer classified as Tier 1 by major industry rankings, including BloombergNEF, which confirms its financial stability and consistent manufacturing quality. The company holds ISO 9001 and SA 8000 certifications. INFINITY RT series panels are distributed through authorized partners across Europe, and the manufacturer warranty is enforceable through local entities. Prospective buyers are advised to confirm specific service and warranty terms with their chosen distributor prior to purchase. ### Does the DMEGC INFINITY RT series feature a glass-glass construction and what does this mean for system longevity? Yes, the INFINITY RT series employs a dual-glass design with tempered glass on both the front and rear sides of the module. This eliminates the backsheet, which is susceptible to cracking and moisture ingress, thereby improving resistance to cell microcracks and the PID (Potential-Induced Degradation) effect. The glass-glass construction extends the mechanical service life of the module and performs particularly well in high-humidity environments or coastal installations. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/66b9d39b170cc-24d6716ce795.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +45 W, cooler, +2.3 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +40 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +50 W, cooler, +2.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +50 W, cooler, +2.0 pp | | [Gokin GK-3-54HGb-500M](https://comparepv.com/panel/gokin-gk-3-54hgb-500m) | 500 W | +50 W, cooler, +2.0 pp | | [GCL GCL-NR10R/54BGDF](https://comparepv.com/panel/gcl-gcl-nr10r-54bgdf) | 500 W | +50 W, heavier, +2.0 pp | | [DMEGC DM435M10RT-B54HBB-L](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm435m10rt-b54hbb-l) | 435 W | -15 W, -0.7 pp | | [DMEGC DM440M10RT-54HSW/HBW](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm440m10rt-54hsw-hbw) | 440 W | -10 W, -0.5 pp | | [DMEGC DM445M10RT-54HSW/HBW](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm445m10rt-54hsw-hbw) | 445 W | Very close match | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +60 W, cooler, +2.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/dmegc-hengdian-group-dmegc-magnetics-co-ltd-dm450m10rt-54hbb Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.