--- title: "Meyer Burger MB_TG120ByB_375 375W Solar Panel - Specs & Review | ComparePV" description: "Meyer Burger MB_TG120ByB_375 375W solar panel. Specs: 20.90% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/meyer-burger-mb-tg120byb-375" updated: 2026-09-11 --- # Meyer Burger MB\_TG120ByB\_375 Solid all-round for its segment 45 panels in the segment HJT 350-400 W ## Identity - **Manufacturer:** Meyer Burger - **Model:** MB\_TG120ByB\_375 - **Series:** Meyer Burger Glass (MB\_TG120ByB\_XXX) - **Rated power:** 375 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 350-400 W (45 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 375 W | 380 W | Typical | | | Module efficiency | 20.90% | 20.90% | Typical | 10,072 | | Power density | 209.2 | 209.3 | Typical | 10,080 | | Temperature coefficient | -0.259 | -0.259 | Typical | 480 | | Weight (kg) | 24.4 kg | 22.8 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.90% | 20.90% | Typical | 10,072 | | Power density | 209.2 | 209.3 | Typical | 10,080 | | Temperature coefficient | -0.259 | -0.259 | Typical | 480 | | Weight per kWp | 65.1 | 59.2 | Typical | 13,045 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Residential, commercial and hot-climate. ## Specification ### Electrical - **Rated power (Pmax):** 375 W - **Efficiency:** 20.90 % - **Voltage at Pmax (Vmp):** 38.00 V - **Current at Pmax (Imp):** 9.90 A - **Open-circuit voltage (Voc):** 44.60 V - **Short-circuit current (Isc):** 10.30 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.259 %/degC - **Temperature coefficient of Voc:** -0.234 %/degC - **Temperature coefficient of Isc:** 0.033 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** HJT - **Cell count:** 120 - **Bifacial:** yes ### Physical - **Length:** 1722 mm - **Width:** 1041 mm - **Thickness:** 35 mm - **Weight:** 24.4 kg - **Area:** 1.79 m2 - **Power density:** 209.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 93.2 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.20 % - **Output after 30 years:** 350 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10072 of 14005 | | Power density | 10080 of 14005 | | Temperature coefficient | 480 of 14005 | | Weight | 13045 of 14005 | | Warranty | 21 of 14005 | ## Pros - **High HJT cell efficiency** - Module efficiency reaches up to 21.8% (top variant), placing the series above comparable models - JA Solar JAM60S21 (21%), Phono Solar Twinplus (21.3%) and LG NeON R Prime (21.5%). Heterojunction (HJT) cells also have a low power temperature coefficient of -0.259%/°C, reducing power losses on hot days. - **SmartWire Connection Technology (SWCT)** - Instead of conventional busbars, the module uses a multi-wire SWCT grid that reduces mechanical stress between cells and lowers the risk of microcracks causing power degradation under wind and snow loads. - **30-year product and power warranty** - The manufacturer states 30 years of warranty for both the product and power output - longer than the standard 25 years offered by most tier-1 manufacturers, including several comparable series in the peer comparables list (JA Solar, Phono Solar). - **Bifacial glass-glass construction** - Bifaciality allows the module to capture light reaching the rear side (e.g., from a light-colored roof or ground), increasing real-world energy yield, while the glass-glass construction with a 3.2 mm front glass improves resistance to moisture and material aging compared to standard backsheet modules. - **Tier-1, Swiss brand since 1953** - Meyer Burger is a tier-1 (bankable) manufacturer headquartered in Switzerland, operating since 1953, which has historically translated into high manufacturing quality and brand reputation in the premium HJT module segment. ## Cons - **Production discontinued** - The series was manufactured from 2023 to 2025, after which the manufacturer ended production. This limits the availability of service, spare parts, and up-to-date technical documentation for already installed modules. - **Manufacturer insolvency risk** - In 2025, Meyer Burger Technology AG and Meyer Burger GmbH filed for insolvency, and module production at the Arizona factory was halted in May 2025. Despite the stated 30-year product and power warranty, its actual enforceability over the coming decades is uncertain given the manufacturer's financial difficulties. - **Higher weight of the glass-glass module** - The glass-glass construction (3.2 mm front glass) results in a weight of about 19.7 kg at dimensions of 1767 x 1041 mm, more than typical glass-backsheet modules of similar power. This requires an adequately reinforced roof structure and mounting system. ## About this series The Meyer Burger Glass (MB\_TG120ByB\_XXX) series are glass-glass modules with a **transparent back**, designed to realistically increase energy yield even when conditions are not ideal. The use of **heterojunction (HJT) cells** ensures stable performance in high temperatures and high efficiency in low light conditions, which is important in the Polish climate. A key feature is the **SmartWire connection technology**, which reduces the risk of microcracks and power losses due to stress - this is a common problem in modules that operate for years in wind and snow. The glass-glass construction increases resistance to moisture and material aging, and thanks to the **bifacial** nature of the module, it can utilize light from the back side (e.g., from a light surface or roof). This series is a good choice for investors looking for long-term lifespan and predictable production - both in premium rooftop installations and in commercial projects where durability and stability of parameters over time are important. ## Notable figures - At 20.9% efficiency, this panel is on par with typical \*\*HJT 0-400W\*\* modules - At 209.2 W/m² power density, roof space requirements are typical for \*\*HJT 0-400W\*\* panels - At -0.26%/°C, hot weather performance is typical for \*\*HJT 0-400W\*\* panels - At 24.4 kg, this panel is 2.9 kg heavier than the \*\*HJT 0-400W\*\* median (21.5 kg) - more demanding for installation crews - 90% bifaciality enables rear-side power generation, boosting yield by 4-14% on reflective surfaces ## Questions ### Is the Meyer Burger Glass MB\_TG120ByB series still available for purchase? The Meyer Burger Glass MB\_TG120ByB series has been officially discontinued. Meyer Burger's German manufacturing facilities entered insolvency proceedings, and its Arizona plant was shut down in May 2025. Some distributors may still hold inventory, but no new factory shipments are expected. Before purchasing, verify that the seller has stock on hand and can back the warranty through a distributor or insurance arrangement. ### What warranty does the Meyer Burger Glass MB\_TG120ByB come with? Meyer Burger provided a 30-year product warranty covering defects in materials and workmanship, alongside a 30-year linear power output warranty — among the longest in the residential solar market. Given the manufacturer's current financial situation, buyers should confirm with the seller how the warranty is secured — for example, through a distributor guarantee or third-party insurance policy. ### What is SmartWire Connection Technology and why does it matter in the MB\_TG120ByB panels? SmartWire Connection Technology (SWCT) replaces conventional thick busbars with a fine mesh of thin wires connecting the HJT cells. This spreads thermomechanical stress more evenly across the cell surface, significantly reducing the risk of microcracks. In practice, it means lower power degradation over years of operation — especially relevant in climates with large daily temperature swings, high wind loads, and snow accumulation. ### Is the MB\_TG120ByB 390W suitable for a pitched roof installation? Yes, at 1722 x 1041 x 35 mm and approximately 24 kg, the module fits standard residential racking systems. HJT technology delivers above-average output in diffuse light and low temperatures, which are common in spring and autumn. Keep in mind that the dual-glass construction requires a racking profile compatible with the 35 mm aluminum frame, and the slightly higher weight compared to backsheet modules should be factored into structural load calculations. ### How does bifacial design in the Meyer Burger Glass series compare to standard monofacial panels? The MB\_TG120ByB uses a transparent rear glass that allows reflected light from the ground surface — such as a white roofing membrane, gravel, or snow — to reach the HJT cells from the back, boosting energy yield by several percentage points depending on surface albedo. Unlike modules with opaque white backsheets, the rear glass layer also provides superior protection against moisture ingress and material aging, supporting the module's long service life. ### How does HJT technology affect MB\_TG120ByB performance during hot summer days above 35°C? HJT cells carry a lower temperature coefficient of power (around -0.26%/°C) compared to standard PERC cells (-0.35%/°C). At an ambient temperature of 40°C, the MB\_TG120ByB retains proportionally more of its rated output than older-technology modules. For rooftop systems at full irradiance, this translates to a real-world production advantage of a few percent during peak summer hours. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ds-meyer-burger-glass-en-84b82a67148d.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Lighter, +2.2 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Lighter, +2.2 pp, -5 yr warranty | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -35 W, lighter, +2.1 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -15 W, lighter, +2.1 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +2.1 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +25 W, lighter, +2.1 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | +25 W, lighter, +2.1 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +2.1 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Lighter, +1.7 pp, +10 yr warranty | | [Maxeon SPR-MAX3-425-R](https://comparepv.com/panel/maxeon-spr-max3-425-r) | 425 W | +50 W, +1.5 pp, +10 yr warranty | | [Meyer Burger MB\_TG120ByB\_370](https://comparepv.com/panel/meyer-burger-mb-tg120byb-370) | 370 W | -0.3 pp | | [Meyer Burger MB\_TG120ByB\_380](https://comparepv.com/panel/meyer-burger-mb-tg120byb-380) | 380 W | +0.3 pp | | [Meyer Burger MB\_TG120ByB\_385](https://comparepv.com/panel/meyer-burger-mb-tg120byb-385) | 385 W | +10 W, +0.6 pp | | [Meyer Burger MB\_TG120ByB\_390](https://comparepv.com/panel/meyer-burger-mb-tg120byb-390) | 390 W | +15 W, +0.9 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +135 W, cooler, +4.1 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +120 W, lighter, +3.9 pp | --- Source: https://comparepv.com/panel/meyer-burger-mb-tg120byb-375 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.