--- title: "DMEGC DM465M10RT-B54HBW 465W Solar Panel - Specs & Review | ComparePV" description: "DMEGC DM465M10RT-B54HBW 465W solar panel. Specs: 23.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/dmegc-solar-hengdian-group-dm465m10rt-b54hbw" updated: 2026-09-11 --- # DMEGC DM465M10RT-B54HBW Efficiency leader, no clear weak spot 1,089 panels in the segment TOPCon 450-500 W ## Identity - **Manufacturer:** DMEGC - **Model:** DM465M10RT-B54HBW - **Series:** INFINITY RT (DMxxxM10RT-B54HBW) - **Rated power:** 465 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 450-500 W (1089 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 465 W | 465 W | Typical | | | Module efficiency | 23.30% | 22.52% | Strong - top 9% | 1,017 | | Power density | 232.7 | 225.2 | Strong - top 10% | 1,115 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 24.5 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 | 23.30% | 22.52% | Strong - top 9% | 1,017 | | Power density | 232.7 | 225.2 | Strong - top 10% | 1,115 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 52.7 | 52.2 | Typical | 6,318 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **23.30% module efficiency** - Top 9% of the TOPCon 450-500 W segment, against a median of 22.52%. Ranked 1,017th in the whole database. - **232.7 watts per square metre** - Top 10% of the TOPCon 450-500 W segment, against a median of 225.2. - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 465 W - **Efficiency:** 23.30 % - **Voltage at Pmax (Vmp):** 34.51 V - **Current at Pmax (Imp):** 13.48 A - **Open-circuit voltage (Voc):** 40.85 V - **Short-circuit current (Isc):** 14.38 A ### 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 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 24.5 kg - **Area:** 2.00 m2 - **Power density:** 232.7 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:** 406 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1017 of 14005 | | Power density | 1115 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 6318 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Efficiency up to 23.3% – outperforms peer comparables** - The top variant in the series achieves 23.3%, while the DAH DHN-54R18/DG(BW) tops out at 22.78% and the JS Solar/Jinko JS182MHC120 at 21.48%. The 1.82 percentage-point advantage over the JS182MHC120 translates into meaningfully higher energy yield from the same roof area, eliminating the need to add extra modules. - **N-type TOPCon degradation ≤0.4%/year** - The N-type TOPCon cells of the B54HBW series exhibit first-year degradation below 1% and ≤0.4%/year in subsequent years, guaranteeing ≥87.4% power retention after 30 years. Legacy P-type PERC modules typically degrade at 0.55–0.70%/year, resulting in a several-percentage-point gap in cumulative energy yield over a 30-year project life. - **30-year linear power warranty** - DMEGC offers a 25-year product warranty and a full 30-year linear power output warranty. By comparison, the JS Solar JS182MHC120 carries a standard 25-year power warranty. The extended DMEGC horizon directly reduces financial risk in LCOE models for both commercial and residential prosumer installations. - **Glass-glass bifacial construction with HBW layer** - The dual-glass design eliminates backsheet delamination risk and improves resistance to moisture ingress and mechanical loads (snow, wind). The bifacial orientation enables an additional 10–20% energy gain from albedo reflection off sheet metal, concrete, or gravel surfaces on flat roofs, carports, and ground-mount systems. The HBW (white back layer) variant enhances performance under diffuse light conditions. - **BNEF Tier-1 rated, manufacturer since 1980** - DMEGC Solar maintained its BloombergNEF Tier-1 status in Q3 2025, enabling non-recourse debt financing for projects. The company has operated continuously since 1980 and manufactures approximately 21 GW per year, confirming long-term operational stability and the capacity to honor warranty obligations over the full module lifetime. ## Cons - **Higher module weight with glass-glass construction (24.5 kg)** - The module weighs 24.5 kg per the manufacturer's datasheet. Equivalent glass-backsheet modules of the same form factor (108-cell M10R) typically weigh around 21–22 kg. The ~2.5–3 kg difference may be a limiting factor on older roofs with reduced load-bearing capacity or on installations where difficult site access requires modules to be lifted manually. ## About this series High efficiency on limited roof space, with no compromises on durability. These are **glass-glass** modules, which better protect the cells from moisture, micro-cracks, and mechanical stress, translating to more stable performance for years. The use of **N-type TOPCon cells** helps reduce degradation over time and improves performance at high temperatures, making energy production more predictable during summer conditions. The **bifacial** design allows for additional use of reflected light from light surfaces (e.g., metal roofing, concrete, gravel), which is significant for flat roofs, carports, or ground-mounted structures. The HBW variant with the white rear layer enhances aesthetics and may improve performance under diffuse light. This is an excellent choice for clients seeking **long warranties and low degradation**, while also expecting a refined appearance and high resistance to external conditions. ## Notable figures - Efficiency of 23.3% is 0.8pp above the \*\*TOPCon 450-500W\*\* median (22.5%) - 232.7 W/m² power density - 7.5 W/m² more than \*\*TOPCon 450-500W\*\* median (225.2 W/m²), more power per roof area - Temperature coefficient of -0.29%/°C matches the \*\*TOPCon 450-500W\*\* median - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces - Ranked #1017 out of 14005 panels for efficiency in the database ## Questions ### What warranty does the DMEGC INFINITY RT series carry and what does it cover exactly? The DMEGC INFINITY RT series comes with a 25-year product warranty covering material defects and workmanship, along with a 30-year linear power output warranty. The manufacturer guarantees degradation of no more than 1% in the first year and no more than 0.4% per year in subsequent years. This is one of the strongest degradation profiles in the industry and means that after 30 years the module should retain more than 87% of its original rated power. ### What does it mean that the DMEGC INFINITY RT panel is bifacial, and is it worth it on a pitched roof? Bifacial design means the panel generates power from both the front glass and the rear glass by capturing light reflected from the surface below. On a pitched roof with dark roof tiles the gain is modest, since the albedo is low. Bifaciality delivers the greatest benefit on flat roofs, carports, pergolas, or ground-mounted systems installed over high-reflectivity surfaces such as concrete, gravel, or white metal sheeting, where real-world bifacial energy gains can reach anywhere from a few to over ten percent. ### Why does the INFINITY RT series use dual glass instead of a standard backsheet, and what does that mean in practice? A glass-glass construction replaces the conventional polymer backsheet with a second tempered glass pane. This configuration provides superior protection against moisture ingress through the rear of the module, reduces the risk of microcracks under mechanical loading, and offers better resistance to UV radiation. In practice, this translates into lower long-term degradation and an extended service life for the module — a particularly important attribute when backed by a 30-year power output warranty. ### How do DMEGC INFINITY RT panels perform at high temperatures during summer? The N-type TOPCon technology used in the INFINITY RT series delivers a better power temperature coefficient than older PERC cells. This means the module loses less power on hot summer days compared to a conventional panel. In practice, the installation will be more predictable and efficient during heat waves, when rooftops can reach temperatures above 60–70 °C. This is a meaningful advantage when calculating real-world annual energy yields. ### How many DMEGC INFINITY RT panels do I need for a 10 kW system? At a peak rated power of 465 Wp per module, you need 22 panels to reach a 10 kW system (22 × 465 W = 10,230 W). It is worth discussing available roof area with your installer, as each module measures approximately 1,762 × 1,134 mm and weighs around 23–24 kg in the glass-glass configuration — factors that matter for layout planning and structural load calculations. ### Is DMEGC a reliable solar panel manufacturer? DMEGC Solar (Hengdian Group DMEGC Magnetics) is classified as a Tier 1 manufacturer by independent industry rating agencies, confirming bankability and a stable market position. The company has been active in the photovoltaic industry for many years, operates its own cell and module production lines in China, and is actively expanding its N-type TOPCon segment. For customers, this means the warranty is backed by a financially sound entity, providing meaningful assurance over the full warranty term. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/67650a3cd5a13-5c281324acfe.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +45 W, cooler, +1.7 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +30 W, lighter, +1.5 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +40 W, cooler, +1.4 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +1.2 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +35 W, cooler, +1.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +35 W, lighter, +1.2 pp | | [DMEGC DM435M10RT-B54HBB-L](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm435m10rt-b54hbb-l) | 435 W | -30 W, lighter, -1.5 pp | | [DMEGC DM440M10RT-54HSW/HBW](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm440m10rt-54hsw-hbw) | 440 W | -25 W, lighter, -1.3 pp | | [DMEGC DM445M10RT-54HSW/HBW](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm445m10rt-54hsw-hbw) | 445 W | -20 W, lighter, -1.0 pp | --- Source: https://comparepv.com/panel/dmegc-solar-hengdian-group-dm465m10rt-b54hbw 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.