--- title: "Bruk-Bet BEM 375 W 375W Solar Panel - Specs & Review | ComparePV" description: "Bruk-Bet BEM 375 W 375W solar panel. Specs: 20.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/bruk-bet-bem-375-w" updated: 2026-09-11 --- # Bruk-Bet BEM 375 W Efficiency leader, no clear weak spot 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Bruk-Bet - **Model:** BEM 375 W - **Series:** PERFECT EDGE - **Rated power:** 375 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 375 W | 380 W | Typical | | | Module efficiency | 20.50% | 19.90% | Strong - top 10% | 11,308 | | Power density | 204.9 | 199.0 | Strong - top 10% | 11,368 | | Temperature coefficient | - | -0.350 | | | | Weight (kg) | - | 21.4 kg | | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.50% | 19.90% | Strong - top 10% | 11,308 | | Power density | 204.9 | 199.0 | Strong - top 10% | 11,368 | | Temperature coefficient | - | -0.350 | | | | Weight per kWp | - | 55.8 | | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **20.50% module efficiency** - Top 10% of the PERC 350-400 W segment, against a median of 19.90%. - **204.9 watts per square metre** - Top 10% of the PERC 350-400 W segment, against a median of 199.0. - **Best for:** Residential and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 375 W - **Efficiency:** 20.50 % ### Temperature ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 1760 mm - **Width:** 1040 mm - **Thickness:** 40 mm - **Area:** 1.83 m2 - **Power density:** 204.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 83.0 % - **First-year degradation:** 8.30 % - **Annual degradation:** 0.36 % - **Output after 30 years:** 304 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 11308 of 14005 | | Power density | 11368 of 14005 | | Temperature coefficient | 13924 of 14005 | | Weight | 13988 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **Efficiency Above the Peer Group** - The module's 20.5% efficiency outperforms both Boviet models available in the same power class: VEGA SERIES (20.0%) and GAMMA SERIES™ (20.2%). The 0.3–0.5 percentage-point gap translates into measurably higher annual energy yield for the same roof area. - **Hail Certification: 55 mm / 33.9 m/s** - The series carries verified resistance to hailstones 55 mm in diameter at an impact velocity of 33.9 m/s — well above the IEC 61215 requirement of 25 mm / 23 m/s. This is a significant advantage for installations in Central European regions prone to severe hailstorms. - **Domestic Manufacturing, Local After-Sales Support** - Bruk-Bet has been manufacturing modules in Poland since 1984, with annual capacity of up to 120 MW. This ensures service delivered by authorized domestic partners, a short supply chain, and no risk of customs-related delays associated with Asian imports. - **Triple Electroluminescence Testing** - Every module undergoes EL inspection three times during the production process, enabling detection of micro-cracks that are invisible in standard visual inspection. The industry baseline is a single EL test at final acceptance. - **Comprehensive Environmental Certification** - The series holds certifications for resistance to PID, LID, ammonia, and salt mist, qualifying it for installation in agricultural, coastal, and industrial locations where conventional modules typically exhibit accelerated corrosion and degradation. ## Cons - **Lower Efficiency Than JS Solar JSHC166M120** - The direct peer JS Solar JSHC166M120 375 Wp achieves 21.3% efficiency versus this series' 20.5% — a 0.8 percentage-point gap at identical peak power. On a 10 kWp system (approximately 27 modules), this translates to an estimated 3–4% lower annual energy yield. - **12-Year Product Warranty** - The baseline product warranty is 12 years (extendable to 15 or 20 years through authorized partners), while leading European and Asian premium manufacturers (REC, LONGi, Q CELLS) offer 15–25 years without installation-related conditions. The lower baseline raises investor risk if the partner's authorization status changes. - **Single Power Option Within the Series (375 Wp)** - The series is available in only one power variant — 375 Wp. The absence of higher-wattage options within the PERFECT EDGE line requires switching to a different product line when higher power density is needed, complicating system standardization and future capacity expansion. ## About this series The Bruk-Bet PERFECT EDGE solar panel series is an advanced solution based on **N-Type TopCon cell technology**, which guarantees higher efficiency and minimal power degradation over time. Thanks to the use of **glass-glass construction**, these modules exhibit extreme resistance to weather conditions, micro-cracks, and the corrosive effects of ammonia or salt, making them an ideal choice for installations in harsh environmental conditions. A key distinguishing feature is **bifaciality (Bifacial)**, allowing for additional energy yield from reflected radiation, which significantly shortens the return on investment time. PERFECT EDGE solves the problem of rapid performance decline in traditional panels, offering stable operation for decades. This is a proposition for the most demanding private and business investors seeking uncompromising quality confirmed by **Polish production control**. Unlike mass competition from Asia, this series focuses on rigorous durability tests and excellent craftsmanship aesthetics, ensuring energy security and an aesthetic look for the roof. By choosing these modules, you gain the certainty of on-site service and a product tailored to the specific requirements of the European climate. This series sets new standards for durability, eliminating concerns about the installation's lifespan over several decades of operation. ## Notable figures - Efficiency of 20.5% is 1.1pp above the \*\*PERC 0-400W\*\* median (19.4%) - At 204.9 W/m² power density, this panel generates 10.5 W/m² more per unit area than \*\*PERC 0-400W\*\* median (194.4 W/m²) - Ranked #11308 out of 14005 panels for efficiency in the database ## Questions ### What warranty is provided for the Bruk-Bet PERFECT EDGE 375W panels? The PERFECT EDGE 375W series comes with a 12-year product warranty covering material and manufacturing defects, along with a 25-year linear power output warranty. The latter guarantees that after a quarter century of operation, the module should still produce at least 80–83% of its nominal power. Thanks to Polish production oversight, any warranty claims can be resolved without the need to contact a distant overseas service center. ### What is N-Type TOPCon technology and why was it chosen for the PERFECT EDGE series? N-Type TOPCon (Tunnel Oxide Passivated Contact) cells exhibit a lower charge carrier recombination rate than conventional P-Type PERC cells, resulting in higher efficiency and slower power degradation over time. In practical terms, the panel loses less output with each year of operation. For the system owner, this translates into more energy generated over the full 25-year power warranty period and a better return on investment. ### Why does the PERFECT EDGE series use a glass-glass construction instead of a standard polymer backsheet? The rear glass pane replaces a conventional polymer backsheet, eliminating its susceptibility to micro-cracking, yellowing, and delamination. Glass-glass modules demonstrate significantly higher resistance to moisture, ammonia (agricultural environments), and salt (coastal installations). An additional benefit is reduced Potential-Induced Degradation (PID), which directly extends system service life beyond 30 years. ### Will the Bruk-Bet PERFECT EDGE 375W panels perform well in the Polish climate, where winters can be cold and overcast? Yes. N-Type TOPCon cells feature a favorable temperature coefficient of power, meaning that on cold but sunny winter days the module can operate close to peak efficiency. The glass-glass construction provides resistance to snow loads of up to 5,400 Pa. The PERFECT EDGE series was designed with the specific demands of the European climate in mind, where temperature swings between summer and winter are considerable. ### Who are the Bruk-Bet PERFECT EDGE 375W panels intended for — are they suitable for a small residential installation? The PERFECT EDGE 375W series is aimed at residential and commercial investors who demand the highest quality and long service life. At 375 Wp per module, a typical prosumer system of 5 to 10 kWp can be configured with a relatively small number of panels. Straightforward Polish after-sales service and rigorous production quality control make this series a particularly compelling choice wherever decades of reliable operation matter more than the lowest upfront cost. ### Is the Bruk-Bet PERFECT EDGE 375W series still available for purchase? The PERFECT EDGE 375W series has been discontinued and is no longer actively offered by the manufacturer. Bruk-Bet Fotowoltaika has replaced it with newer product lines — including the PERFECT EDGE MAX and PERFECT EDGE ELITE GLASS — featuring higher power ratings and updated specifications. If you are looking for products from the same brand with Polish quality control, it is worth checking the current offering through an authorized distribution network. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Bruk-Bet-Fotowoltaika-BEM-375W-2d2c6c794e27.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | -45 W, +2.6 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | -45 W, +2.6 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -35 W, +2.5 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -15 W, +2.5 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | +2.5 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +25 W, +2.5 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | +25 W, +2.5 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | +2.5 pp, +5 yr warranty | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | +25 W, +2.1 pp, +15 yr warranty | | [Maxeon SPR-MAX3-425-R](https://comparepv.com/panel/maxeon-spr-max3-425-r) | 425 W | +50 W, +1.9 pp, +15 yr warranty | | [Bruk-Bet PEM.BB-370 HALF-CELL](https://comparepv.com/panel/bruk-bet-fotowoltaika-bruk-bet-sp-z-o-o-pem-bb-370-half-cell) | 370 W | Very close match | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +135 W, +4.5 pp, +5 yr warranty | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +120 W, +4.3 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +130 W, +4.2 pp, +5 yr warranty | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +115 W, +4.0 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +125 W, +4.0 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/bruk-bet-bem-375-w Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.