--- title: "Bruk-Bet PEM.WB-460 460W Solar Panel - Specs & Review | ComparePV" description: "Bruk-Bet PEM.WB-460 460W solar panel. Specs: 21.05% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/bruk-bet-pem-wb-460" updated: 2026-09-11 --- # Bruk-Bet PEM.WB-460 Strong in heat, no clear weak spot 449 panels in the segment PERC 450-500 W ## Identity - **Manufacturer:** Bruk-Bet - **Model:** PEM.WB-460 - **Series:** OPTIMAL EDGE - **Rated power:** 460 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 450-500 W (449 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 460 W | 460 W | Typical | | | Module efficiency | 21.05% | 20.82% | Strong - top 25% | 9,647 | | Power density | 210.5 | 208.5 | Typical | 9,611 | | Temperature coefficient | -0.324 | -0.350 | Strong - top 5% | 8,509 | | Weight (kg) | 24.0 kg | 24.5 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.05% | 20.82% | Strong - top 25% | 9,647 | | Power density | 210.5 | 208.5 | Typical | 9,611 | | Temperature coefficient | -0.324 | -0.350 | Strong - top 5% | 8,509 | | Weight per kWp | 52.2 | 53.1 | Typical | 5,637 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.324 %/°C temperature coefficient** - Top 5% of the PERC 450-500 W segment, against a median of -0.350. Ranked 8,509th in the whole database. - **21.05% module efficiency** - Top 25% of the PERC 450-500 W segment, against a median of 20.82%. - **Best for:** Residential, commercial, shaded-installations and BIPV. ## Specification ### Electrical - **Rated power (Pmax):** 460 W - **Efficiency:** 21.05 % - **Voltage at Pmax (Vmp):** 35.06 V - **Current at Pmax (Imp):** 13.13 A - **Open-circuit voltage (Voc):** 41.68 V - **Short-circuit current (Isc):** 13.77 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.324 %/degC - **Temperature coefficient of Voc:** -0.259 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 1920 mm - **Width:** 1138 mm - **Thickness:** 35 mm - **Weight:** 24.0 kg - **Area:** 2.18 m2 - **Power density:** 210.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 81.5 % - **Output after 30 years:** 358 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 9647 of 14005 | | Power density | 9611 of 14005 | | Temperature coefficient | 8509 of 14005 | | Weight | 5637 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Domestic Manufacturing and In-Country Service** - Modules are manufactured at the Tarnów facility — Bruk-Bet is Poland's largest domestic PV module producer, operating since 1984. The shortened supply chain eliminates the logistical risks typical of Asian imports, and warranty service is handled directly without foreign intermediaries. - **KIWA and DNV GL Certifications** - Resistance to PID, LID, and corrosion (ammonia, salt mist) is confirmed by independent KIWA certifications; the manufacturing facility holds DNV GL certification covering ISO 9001, ISO 14001, and OHSAS 18001. These third-party validations provide concrete quality assurance beyond manufacturer declarations. - **Half-Cut Cells + Multi-Busbar — Enhanced Shade Tolerance** - The half-cut cell design reduces resistive losses and limits the impact of partial shading on overall module output. The multi-busbar architecture improves current conductivity and increases cell mechanical resilience against micro-damage during transport and installation. - **25-Year Linear Power Warranty** - The manufacturer offers a 25-year linear power output warranty, in line with the market standard for PERC modules, ensuring predictable energy yield throughout the full operational lifetime of both residential and commercial PV systems. ## Cons - **PERC (P-Type) — Previous-Generation Cell Technology** - P-type PERC cells exhibit a higher light-induced degradation (LID/LeTID) rate in the first year of operation (~2%) compared to N-type TOPCon (~1%). In 2024, TOPCon captured approximately 66% of global module production — PERC is becoming a legacy technology, which may affect spare parts availability and residual system value beyond 2030. - **Efficiency 20.26–21.05% vs. 23% Peers** - The Risen RSM96-11-440-460BNDG achieves 23% efficiency and the SunKean SKT440~460M12-96D4 reaches 23.02%, both at an identical power range up to 460 Wp. The ~2 percentage point gap translates to approximately 9–10% more OPTIMAL EDGE modules required for the same peak power output — a meaningful constraint on space-limited rooftop installations. - **15-Year Product Warranty vs. 25 Years from Competitors** - The OPTIMAL EDGE series carries a 15-year product warranty, while leading premium-segment Asian manufacturers — including Risen Energy — offer a standard 25-year product warranty. Given a projected system lifetime of 25+ years, this gap has tangible implications for total cost of ownership (TCO) calculations. ## About this series The Bruk-Bet OPTIMAL EDGE series is designed to deliver stable performance in real-world conditions, even when the roof is not perfectly exposed to sunlight. The use of **monocrystalline cells in half-cut technology** helps minimize losses and improves module performance under partial shading, while the **multibusbar design** supports efficient current flow and better resistance to micro-damage. The OPTIMAL EDGE GLASS-GLASS variants utilize a **double-glass architecture** and more advanced **N-Type cells**, which translates into greater durability and reduced susceptibility to typical long-term degradation mechanisms. This is a good choice for homes and businesses that want to combine aesthetics (e.g., Full Black versions) with predictable performance over the years, even in demanding climates. The series emphasizes quality control and operational durability, making it easier to build an installation that is focused on long-term return on investment, rather than just "on paper" specifications. ## Notable figures - Efficiency of 21.1% matches the \*\*PERC 450-500W\*\* median - At 210.5 W/m² power density, roof space requirements are typical for \*\*PERC 450-500W\*\* panels - -0.32%/°C temperature coefficient (median: -0.35%/°C) - retains ~1% more power at high temperatures - #9647 for efficiency, #8509 for temperature performance out of 14005 panels ## Questions ### What warranty applies to Bruk-Bet OPTIMAL EDGE panels? Bruk-Bet OPTIMAL EDGE panels come with a 15-year product warranty covering physical and material defects, as well as a 25-year linear power output warranty. This means the manufacturer guarantees a specified minimum performance level for a full quarter century, allowing investors to plan their return on investment in advance. The warranty is administered by the Polish manufacturer directly, which simplifies any potential claims process and eliminates the need to contact a foreign service center. ### Do Bruk-Bet OPTIMAL EDGE panels perform well under partial roof shading? Yes. The monocrystalline half-cut cell technology splits each cell into two halves, so shading on one portion of the panel does not impair the entire module nearly as severely as it would in a conventional full-cell design. The multibusbar layout — multiple thin current-collecting busbars — further reduces losses under non-uniform irradiance and improves resistance to microcracks. This makes the panels a strong choice for rooftops with chimneys, dormers, or surrounding obstructions. ### What distinguishes the Bruk-Bet OPTIMAL EDGE GLASS-GLASS variant from the standard version? The GLASS-GLASS version replaces the standard rear laminate backsheet with a second glass pane, significantly improving resistance to moisture ingress, UV radiation, and mechanical stress. GLASS-GLASS variants also incorporate N-Type cells, which exhibit lower susceptibility to Light-Induced Degradation (LID) and a reduced power temperature coefficient. This solution is particularly recommended for demanding climatic conditions and installations designed with an extended service life in mind. ### What is the maximum power output of a Bruk-Bet OPTIMAL EDGE panel, and is it sufficient for a typical household? The highest-rated module in the OPTIMAL EDGE series achieves a peak power of 460 Wp. For a typical single-family home consuming 3,500–5,000 kWh per year, 8–12 modules of this capacity are generally sufficient, yielding a system size of approximately 3.7–5.5 kWp. The exact number of panels required depends on actual energy consumption, roof orientation and tilt angle, and local solar irradiance. ### Are Bruk-Bet OPTIMAL EDGE panels available in a Full Black version? Yes, the OPTIMAL EDGE series includes Full Black variants featuring a black frame and black backsheet, enabling seamless aesthetic integration with dark roofing materials. This is a popular choice in residential construction where the visual appearance of the roof surface is important to the homeowner. The half-cut cell technology also means that modules in darker enclosures handle elevated operating temperatures better than older full-cell designs. ### Is Bruk-Bet OPTIMAL EDGE a domestically manufactured panel, and does that matter when purchasing? Yes, Bruk-Bet Fotowoltaika is a Poland-based manufacturer, and the OPTIMAL EDGE series is produced domestically. For investors, this translates to a shorter claims path and direct after-sales service without foreign intermediaries. As a domestic manufacturer operating within the EU, Bruk-Bet also complies with European quality standards and certifications — including IEC 61215 and IEC 61730 — which is particularly relevant when applying for subsidies under national funding programs. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Optimal-EDGE-PEMWB-460-b92db6a4dcb2.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +50 W, cooler, +3.9 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, +3.8 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, +3.6 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, +3.4 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, +3.4 pp, +5 yr warranty | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, +3.4 pp, +5 yr warranty | | [Bruk-Bet PEM.BB-450](https://comparepv.com/panel/bruk-bet-pem-bb-450) | 450 W | -10 W, -0.4 pp | | [Bruk-Bet PEM.WS-455](https://comparepv.com/panel/bruk-bet-pem-ws-455) | 455 W | -0.2 pp | | [Bruk-Bet PEM.WB-465](https://comparepv.com/panel/bruk-bet-pem-wb-465) | 465 W | +0.2 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +100 W, cooler, +3.8 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +95 W, cooler, +3.6 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +90 W, lighter, +3.3 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +80 W, cooler, +3.3 pp | | [Gokin GK-5-60HG-540M](https://comparepv.com/panel/gokin-gk-5-60hg-540m) | 540 W | +80 W, cooler, +3.3 pp | | [Jinko Solar JKM545-54QL6-DV-F1-EU](https://comparepv.com/panel/jinko-solar-jkm545-54ql6-dv-f1-eu) | 545 W | +85 W, cooler, +3.2 pp | | [Longi Solar LR7-60HVH-545M](https://comparepv.com/panel/longi-lr7-60hvh-545m) | 545 W | +85 W, cooler, +3.1 pp | --- Source: https://comparepv.com/panel/bruk-bet-pem-wb-460 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.