--- title: "LG LG375Q1K-A6.B 375W Solar Panel - Specs & Review | ComparePV" description: "LG LG375Q1K-A6.B 375W solar panel. Specs: 20.70% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/lg-lg375q1k-a6-b" updated: 2026-09-11 --- # LG LG375Q1K-A6.B Strong in heat, no clear weak spot 51 panels in the segment N-type 350-400 W ## Identity - **Manufacturer:** LG - **Model:** LG375Q1K-A6.B - **Series:** LG NeON®R Prime - **Rated power:** 375 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 350-400 W (51 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 375 W | 370 W | Typical | | | Module efficiency | 20.70% | 20.00% | Typical | 10,764 | | Power density | 206.8 | 200.4 | Typical | 10,911 | | Temperature coefficient | -0.290 | -0.320 | Strong - top 11% | 2,165 | | Weight (kg) | 18.5 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.70% | 20.00% | Typical | 10,764 | | Power density | 206.8 | 200.4 | Typical | 10,911 | | Temperature coefficient | -0.290 | -0.320 | Strong - top 11% | 2,165 | | Weight per kWp | 49.3 | 62.0 | Typical | 2,869 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **-0.290 %/°C temperature coefficient** - Top 11% of the N-type 350-400 W segment, against a median of -0.320. - **Best for:** Residential, hot-climate and BIPV. ## Specification ### Electrical - **Rated power (Pmax):** 375 W - **Efficiency:** 20.70 % - **Voltage at Pmax (Vmp):** 37.00 V - **Current at Pmax (Imp):** 10.12 A - **Open-circuit voltage (Voc):** 43.40 V - **Short-circuit current (Isc):** 10.84 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 60 ### Physical - **Length:** 1740 mm - **Width:** 1042 mm - **Thickness:** 40 mm - **Weight:** 18.5 kg - **Area:** 1.81 m2 - **Power density:** 206.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 92.5 % - **First-year degradation:** 1.50 % - **Annual degradation:** 0.25 % - **Output after 30 years:** 342 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10764 of 14005 | | Power density | 10911 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 2869 of 14005 | | Warranty | 9798 of 14005 | ## Pros - **N-type Back-Contact technology** - The absence of front-side busbars and electrodes (Back-Contact design) increases the active cell surface and eliminates the risk of micro-cracks at critical soldering points. N-type cells contain almost no boron, resulting in minimal LID (Light Induced Degradation) right after installation. - **High efficiency of 20.7-21.5%** - Efficiency up to 21.5% (LG390Q1K-A6 variant) places the series at the top of the segment, above JA Solar JAM60S21 (21.0%) and comparable to Meyer Burger Glass (21.2%) and Phono Solar Twinplus (21.3%), at the same 390 Wp max power. - **25-year product and power warranty** - LG provides 25 years of coverage on both product and power output, with linear degradation of about 0.3% per year after year one - guaranteeing roughly 90.8% of nominal power after 25 years. Full dual-scope coverage is rarely offered together even among Tier-1 manufacturers. - **Reinforced frame and All-Black aesthetics** - The reinforced frame construction allows safe installation in areas with elevated snow and wind loads, while the uniform All-Black look with no visible front busbars makes the panel a visually attractive choice for residential buildings. - **Stable performance at high temperatures** - The Back-Contact architecture combined with N-type cell technology limits performance drop at high module operating temperatures, delivering more stable energy yields during summer months compared to conventional PERC cells. ## Cons - **Discontinued production since 2022** - LG exited the solar panel business in 2022, meaning no new production and limited availability of warranty service and replacement parts (e.g., module swaps under claims) going forward, despite the formally active 25-year warranty. - **No bifacial variant available** - Unlike some newer premium series on the market, LG NeON R Prime does not offer a bifacial version, limiting potential additional energy yield from ground albedo in ground-mounted or flat-roof installations. ## About this series LG NeON R Prime are premium-class panels that redefine efficiency standards through the use of innovative **N-type cell technology in Back-Contact architecture**. The absence of busbars on the front of the module not only increases light absorption but also eliminates the risk of micro-cracks in critical points. This solution is dedicated to the most demanding investors, for whom **maximum efficiency from a limited roof area** while maintaining the highest aesthetics is key. Thanks to their unique structure, these panels perform excellently in challenging lighting conditions and at high temperatures, which translates into stable and high energy yields throughout the year. What sets the Prime series apart from the competition is its **exceptional All-Black aesthetics** combined with unprecedented mechanical durability. The use of a reinforced frame allows for safe installation in locations exposed to heavy snow and wind loads. By choosing these modules, the user invests in **long-term energy security** and reliability, confirmed by some of the best warranty terms on the market. It is an ideal choice for modern residential buildings where the photovoltaic system is intended to be not only a source of savings but also an element that increases the property's prestige. ## Notable figures - 20.7% module efficiency - 1.2pp better than the \*\*N-type 0-400W\*\* median of 19.5% - At 206.8 W/m² power density, this panel generates 11.9 W/m² more per unit area than \*\*N-type 0-400W\*\* median (194.9 W/m²) - At -0.29%/°C (vs median -0.32%/°C), loses ~1% less power in hot conditions - 18.5 kg weight - 3.5 kg lighter than \*\*N-type 0-400W\*\* median (22.0 kg), reducing installation effort - In the top 77% for efficiency among all N-type panels ## Questions ### Is the LG NeON R Prime series still available for purchase? The LG NeON R Prime series was discontinued after LG Electronics exited the solar manufacturing business in June 2022. No new units are being produced; however, limited stock may still be found through authorized distributors. Always verify current inventory levels before committing to a purchase. Warranty support for already-installed modules remains in effect under the original manufacturer terms. ### What warranty does the LG NeON R Prime come with? LG NeON R Prime panels carry a 25-year product warranty and a 25-year power output warranty. After 25 years of operation, LG guarantees the module will retain at least 92.5% of its rated nameplate power. These are among the strongest warranty terms ever offered in the premium solar panel segment, providing long-term investment security for the system owner. ### What is Back-Contact technology in the LG NeON R Prime and does it actually make a difference? Back-Contact technology moves all electrodes to the rear side of the cell, leaving the front surface completely free of busbars. This maximizes light absorption across the entire front face and eliminates thermal stress at busbar-to-cell contact points. In practice, the 390W module achieves a module efficiency of 21.5% and carries a lower risk of micro-cracks throughout its entire service life. ### How does the LG NeON R Prime differ from standard PERC panels? Standard PERC panels rely on P-type cells with front-side busbars, while the LG NeON R Prime uses N-type cells in a Back-Contact architecture. The N-type substrate is inherently more resistant to boron-induced light-induced degradation (LID), and the absence of front busbars yields higher efficiency: 21.5% versus the typical 18-20% for PERC modules. The result is also a lower temperature coefficient and slower long-term power degradation over the module's lifespan. ### Can the LG NeON R Prime 390W handle heavy snow loads and strong winds? Yes. The LG NeON R Prime features a reinforced aluminum frame rated for a front load of 5,400 Pa and a rear load of 4,000 Pa. This enables the module to withstand heavy snow accumulation and strong wind gusts, making it a suitable choice for harsh climatic conditions, including mountain locations exposed to intense snowfall and high-speed winds. ### Does the All-Black aesthetic of the LG NeON R Prime affect its performance compared to standard modules? The All-Black look of the Prime series is a direct consequence of its Back-Contact design: the absence of visible busbars and a dark backsheet create a uniform appearance without any efficiency trade-off. The module still achieves 21.5% efficiency, outperforming most visually similar all-black PERC-based panels. The only consideration is a slightly higher operating temperature under full irradiance, which is offset by the favorable temperature coefficient of the N-type cell technology. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/LG-NeON-R-Prime-375-390W-60-cell-datasheet-b74a769431d3.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, lighter, +2.4 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | -45 W, lighter, +2.4 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -35 W, +2.3 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +2.3 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 | Lighter, +2.3 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, +2.3 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, +2.3 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 | Lighter, +2.3 pp, +5 yr warranty | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | +25 W, +1.9 pp, +15 yr warranty | | [Maxeon SPR-MAX3-425-R](https://comparepv.com/panel/maxeon-spr-max3-425-r) | 425 W | +50 W, +1.7 pp, +15 yr warranty | | [LG LG380Q1K-A6.B](https://comparepv.com/panel/lg-lg380q1k-a6-b) | 380 W | +0.3 pp | | [LG LG385Q1K-A6.B](https://comparepv.com/panel/lg-lg385q1k-a6-b) | 385 W | +10 W, +0.5 pp | | [LG LG390Q1K-A6.B](https://comparepv.com/panel/lg-lg390q1k-a6-b) | 390 W | +15 W, +0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +135 W, heavier, +4.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +120 W, +4.1 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +130 W, heavier, +4.0 pp | --- Source: https://comparepv.com/panel/lg-lg375q1k-a6-b Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.