--- title: "Meyer Burger MB_TG120AyB_375 375W Solar Panel - Specs & Review | ComparePV" description: "Meyer Burger MB_TG120AyB_375 375W solar panel. Specs: 20.40% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/meyer-burger-mb-tg120ayb-375" updated: 2026-09-11 --- # Meyer Burger MB\_TG120AyB\_375 Middle of its segment, modest efficiency 45 panels in the segment HJT 350-400 W ## Identity - **Manufacturer:** Meyer Burger - **Model:** MB\_TG120AyB\_375 - **Series:** Meyer Burger Glass - **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 | 20.40% | 20.90% | Weak - bottom 16% | 11,598 | | Power density | 203.9 | 209.3 | Weak - bottom 16% | 11,634 | | 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 | 20.40% | 20.90% | Weak - bottom 16% | 11,598 | | Power density | 203.9 | 209.3 | Weak - bottom 16% | 11,634 | | 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 | ### Watch out for - **20.40% module efficiency** - Bottom 16% of the HJT 350-400 W segment, against a median of 20.90%. - **203.9 watts per square metre** - Bottom 16% of the HJT 350-400 W segment, against a median of 209.3. - **Best for:** Residential, commercial, hot-climate and shaded-installations. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 375 W - **Efficiency:** 20.40 % - **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:** 1767 mm - **Width:** 1041 mm - **Thickness:** 35 mm - **Weight:** 24.4 kg - **Area:** 1.84 m2 - **Power density:** 203.9 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 | 11598 of 14005 | | Power density | 11634 of 14005 | | Temperature coefficient | 480 of 14005 | | Weight | 13045 of 14005 | | Warranty | 21 of 14005 | ## Pros - **HJT cells with SmartWire technology** - The combination of N-type heterojunction cells with patented SmartWire (SWCT) reduces cell shading losses by about 30% and delivers a lower temperature coefficient than conventional PERC cells, translating into higher energy yield at high temperatures and under low-irradiance conditions (early morning, overcast skies). - **Bifacial glass-glass construction** - The glass-glass build with bifacial cells captures light reflected off the ground, which is meaningful on light-colored roofs, ground-mount installations, or snow cover - without inflating datasheet parameters the way some backsheet modules do. - **30-year product and power warranty** - A 30-year product warranty and 30-year linear power warranty exceed typical terms from peer comparables - JA Solar (JAM60S21) and Phono Solar Twinplus generally offer 12-15 years product warranty and 25 years power warranty, i.e. 5-15 years less coverage. - **Mechanical durability of glass-glass build** - The dual-glass laminate (approx. 23.5 kg for the 385Wp variant) significantly limits moisture ingress and laminate degradation over time compared to glass-backsheet modules, directly supporting power stability over a 20-30 year service life. - **Swiss engineering heritage** - Meyer Burger, founded in Switzerland in 1953, was regarded as a Tier-1 supplier with manufacturing largely based on European silicon and quality standards higher than typical mass-market Asian producers. ## Cons - **Production discontinued, manufacturer insolvent** - The series was discontinued in 2025, and Meyer Burger filed for insolvency in Germany and Chapter 11 bankruptcy protection in the US after closing its Goodyear, Arizona and Thalheim, Germany facilities; manufacturing assets were sold to Waaree and Swift Solar in 2026. Enforcement of the 30-year product warranty and service support is highly uncertain under these circumstances. - **Efficiency not segment-leading** - Maximum efficiency of 21.2% trails comparable N-type modules - LG NeON R Prime reaches 21.5% and Phono Solar Twinplus 21.3% at the same 390 Wp maximum power, so HJT's technological edge does not translate into the highest efficiency in class here. - **Higher glass-glass module weight** - At approximately 23.5 kg for a 1722x1041x35 mm module (about 13 kg/m²), the panel is heavier than typical glass-backsheet modules of similar power, increasing roof structural requirements and installation labor, particularly on retrofit roofs. ## About this series The Meyer Burger Glass series consists of glass-glass construction panels designed for maximum durability and stable operation over a long period. By combining **heterojunction (HJT) technology** with **bidirectional (bifacial) operation**, these modules can effectively utilize light from both sides, which is particularly important on bright roofs, during ground mounting, and in installations with high ground reflection. In practice, this translates to increased energy production under the same conditions without having to "inflate" parameters on paper. The use of **glass-glass construction** improves resistance to moisture, temperature changes, and mechanical loads, which reduces the risk of yield losses due to material degradation over time. Another key feature is **SmartWire (SWCT) technology**, which enhances resistance to microcracks and helps maintain the module's high efficiency in real-world operation. This solution is ideal for investors who want predictable returns and peace of mind for years - particularly in premium installations, in challenging locations, and where long-term durability is a priority, supported by a **long product warranty for glass-glass**. ## Notable figures - At 20.4% efficiency, this panel is on par with typical \*\*HJT 0-400W\*\* modules - At 203.9 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 - Bifacial design (90% factor) captures reflected light - adds 4-14% yield on ground-mount or white roof ## Questions ### Is the Meyer Burger Glass series still available for purchase? The Meyer Burger Glass series has been discontinued and is no longer offered as new stock through regular distribution channels. Availability is limited to remaining inventory held by individual distributors. Meyer Burger has transitioned to a next-generation unified glass-glass platform, and the company's closure of its US manufacturing facility in May 2025 has significantly reduced global product availability across its entire lineup. ### What warranty does the Meyer Burger Glass panel come with? Meyer Burger Glass modules include a 30-year product warranty and a 30-year linear power output warranty. This extended coverage is directly tied to the glass-glass construction, which is far more resistant to moisture ingress and mechanical degradation than conventional glass-backsheet panels. The power warranty ensures predictable energy yields throughout the full operational lifetime of the installation. ### What is HJT cell technology in the Meyer Burger Glass, and how does it compare to PERC? HJT (heterojunction) cells combine crystalline silicon with an ultrathin amorphous silicon layer, resulting in a lower temperature coefficient than PERC cells — meaning less power loss on hot days. HJT modules also perform better in low-light conditions, exhibit near-zero LID (light-induced degradation) after initial exposure, and maintain higher efficiency over the full warranty period compared to standard PERC technology. ### Does the bifacial design of the Meyer Burger Glass panels make sense for a typical residential rooftop installation? The benefit of bifacial output depends heavily on surface albedo beneath the array. On a light-colored roofing membrane or a ground mount over bright gravel, the rear side realistically contributes an additional 5–15% of energy yield. On dark-colored tiles with minimal air gap, the gain is negligible. Bifacial technology delivers the greatest ROI in ground-mounted and commercial installations where rear-side irradiance conditions can be actively optimized. ### What advantages does the glass-glass construction of Meyer Burger Glass offer over standard glass-backsheet panels? The rear glass pane replaces the polymer backsheet, dramatically reducing moisture ingress into the laminate and lowering the risk of PID (potential-induced degradation). The structure also handles snow and wind loads better, and combined with Meyer Burger's SmartWire (SWCT) interconnection technology, it reduces the occurrence of cell microcracks. The result is a lower annual power degradation rate and more predictable energy production across the full 30-year warranty period. ### What is the maximum power output of the Meyer Burger Glass panel, and which inverters is it compatible with? The top variant in the series reaches 390 Wp under standard test conditions (STC). The modules support a system voltage of up to 1500 V DC, enabling longer strings and lower balance-of-system (BoS) cabling costs. The series is compatible with all major string inverters featuring MPPT inputs rated for 1500 V DC, including Fronius, SMA, Huawei, and SolarEdge. Always verify compatibility against the inverter manufacturer's current approved module list before system design. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Meyer-Burger-Glass-Datasheet-MB-TG120AyB-XXX-EN-V02-80248ca4e168.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Lighter, +2.8 pp, -5 yr warranty | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Lighter, +2.8 pp, -5 yr warranty | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -35 W, lighter, +2.6 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -15 W, lighter, +2.6 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +2.6 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, +2.6 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, +2.6 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +2.6 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Lighter, +2.2 pp, +10 yr warranty | | [Maxeon SPR-MAX3-425-R](https://comparepv.com/panel/maxeon-spr-max3-425-r) | 425 W | +50 W, +2.0 pp, +10 yr warranty | | [Meyer Burger MB\_W120AyB\_380](https://comparepv.com/panel/meyer-burger-mb-w120ayb-380) | 380 W | Lighter, +0.3 pp, -5 yr warranty | | [Meyer Burger MB\_W120AyB\_385](https://comparepv.com/panel/meyer-burger-mb-w120ayb-385) | 385 W | Lighter, +0.5 pp, -5 yr warranty | | [Meyer Burger MB\_W120AyB\_390](https://comparepv.com/panel/meyer-burger-mb-w120ayb-390) | 390 W | Lighter, +0.8 pp, -5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +135 W, cooler, +4.6 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +120 W, lighter, +4.4 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +130 W, cooler, +4.3 pp | --- Source: https://comparepv.com/panel/meyer-burger-mb-tg120ayb-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.