--- title: "Longi Solar LR4-60HPB-360M Solar Panel: Specs & Datasheet | ComparePV" description: "Longi Solar LR4-60HPB-360M solar panel. Specs: 19.80% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/longi-lr4-60hpb-360m" image: "https://comparepv.com/og/panel/longi-lr4-60hpb-360m.png" updated: 2026-09-11 --- # Longi Solar LR4-60HPB-360M Strong in heat, no clear weak spot 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Longi Solar - **Model:** LR4-60HPB-360M - **Series:** Hi-MO 4m (LR4-60HPB 355~375M) - **Rated power:** 360 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) | 360 W | 380 W | Weak - bottom 13% | | | Module efficiency | 19.80% | 19.90% | Typical | 12,501 | | Power density | 197.6 | 199.0 | Typical | 12,529 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,846 | | Weight (kg) | 19.5 kg | 21.4 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.80% | 19.90% | Typical | 12,501 | | Power density | 197.6 | 199.0 | Typical | 12,529 | | Temperature coefficient | -0.340 | -0.350 | Strong - top 15% | 8,846 | | Weight per kWp | 54.2 | 55.8 | Typical | 8,449 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,912 | ### Strengths - **-0.340 %/°C temperature coefficient** - Top 15% of the PERC 350-400 W segment, against a median of -0.350. - **Best for:** Residential, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 360 W - **Efficiency:** 19.80 % - **Voltage at Pmax (Vmp):** 34.80 V - **Current at Pmax (Imp):** 10.35 A - **Open-circuit voltage (Voc):** 40.80 V - **Short-circuit current (Isc):** 11.33 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.340 %/degC - **Temperature coefficient of Voc:** -0.265 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 120 ### Physical - **Length:** 1755 mm - **Width:** 1038 mm - **Thickness:** 35 mm - **Weight:** 19.5 kg - **Area:** 1.82 m2 - **Power density:** 197.6 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 295 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12501 of 14129 | | Power density | 12529 of 14129 | | Temperature coefficient | 8846 of 14129 | | Weight | 8449 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **Tier-1 manufacturer, high bankability** - Longi Solar (founded in 2000, China) has maintained BloombergNEF Tier 1 status for PV modules continuously, and holds an AAA rating in the PV-Tech ModuleTech Bankability Ratings for 25 consecutive quarters (as of Q1 2026). This meaningfully eases project financing even for a discontinued series. - **Half-cut cells with multi-busbar design** - Half-cut cell technology combined with a multi-busbar structure reduces internal resistance losses and improves resistance to micro-cracks and hot-spot effects under partial shading - a common issue in rooftop installations with chimneys or antennas. - **Competitive efficiency up to 20.6%** - Module efficiency of 19.5-20.6% places the series on par with ENCOR EC (20.59%) and clearly above Boviet Solar VEGA (20%) at the same 375 Wp maximum power, translating into a smaller footprint for the same installed capacity. - **Compact 120-cell format** - Dimensions of 1755 x 1038 x 35 mm and a weight of 19.5 kg simplify integration with typical string inverters and mounting on both pitched roofs and ground-mount structures, without requiring non-standard mounting solutions. - **Standard Tier-1 warranty terms** - A 12-year product warranty and 25-year power warranty guaranteeing 84.8% output at year 25 match the industry standard for Tier-1 manufacturers from the 2021-2023 era, providing predictable long-term yield. ## Cons - **Discontinued production (2023)** - The Hi-MO 4m series launched in 2021 and was discontinued in 2023. This means limited service availability, restricted access to spare parts, and difficulty sourcing matching modules to expand an existing installation in the future. - **Older PERC cell technology** - The maximum 20.6% efficiency, based on PERC cells, trails newer solutions in the segment, e.g., JS Solar JSHC166M120 (21.3% at the same 375 Wp power), meaning lower energy yield per roof area for comparable pricing. ## About this series Longi Solar Hi-MO 4m (LR4-60HPB 355-375M) are monocrystalline modules designed for maximum stable energy production under real operating conditions-including when parts of the roof are intermittently shaded or the installation operates at elevated temperatures. The use of **half-cut cells** helps minimize internal resistance losses and improves module performance under non-uniform irradiance, resulting in more predictable annual yields. Another key feature is the **multi-busbar structure**, which enables more efficient current transport and increases resistance to micro-cracks during daily operation. In practice, this series addresses typical challenges faced by installers and users-power drops on specific roof sections, sensitivity to hot spots, and the risk of accelerated degradation. For investors, this translates to **higher reliability and consistent energy returns** without the need for oversized installations. The Hi-MO 4m performs well in both residential and commercial applications, where the **compact 120-cell format**, easy integration with standard inverters, and hassle-free installation on rooftops and ground structures are key advantages. ## Notable figures - Efficiency of 19.8% matches the \*\*PERC 0-400W\*\* median - At 197.6 W/m² power density, this panel generates 3.4 W/m² more per unit area than \*\*PERC 0-400W\*\* median (194.2 W/m²) - At -0.34%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - At 19.5 kg, weight matches the \*\*PERC 0-400W\*\* median - In the top 88% for efficiency among all PERC panels ## Questions ### Is the Longi Solar Hi-MO 4m LR4-60HPB 355-375M series still available for purchase? The Hi-MO 4m LR4-60HPB series has been discontinued and is no longer part of Longi Solar's active product catalog. Occasional stock may still exist at distributors' warehouses, but regular new supply is unavailable. Investors planning a new installation should consider newer Longi series such as Hi-MO 5m or Hi-MO 6, which offer higher power output and updated warranties. ### What warranty does the Longi Hi-MO 4m LR4-60HPB come with? The manufacturer provides a 12-year product warranty covering material and workmanship defects, along with a 25-year linear power output warranty. After 25 years of operation, the module is guaranteed to retain at least 84.8% of its nominal power output. As a Tier 1 manufacturer, Longi Solar offers solid service support, though for a discontinued series it is worth confirming the warranty claims process with your distributor. ### What are half-cut cells in the Hi-MO 4m and why do they matter for shading? Half-cut cell technology splits each standard PERC cell into two smaller ones. Each half-cell operates at a lower current, reducing resistive losses and minimizing hot-spot risk. In practice, when a chimney or dormer shades part of the roof, half of the module can still generate power without dragging down the entire string. For Hi-MO 4m installations on roofs with obstructions, this results in significantly better annual energy yield compared to conventional full-size cells. ### How does the Longi Hi-MO 4m LR4-60HPB perform in high summer temperatures? The module features a power temperature coefficient of -0.34%/°C, which is among the better values for PERC technology. At a module temperature of 65°C - a typical summer scenario on a Polish rooftop - the power loss relative to STC conditions is approximately 13.6%. The combination of half-cut cells and a 120-cell 6×20 configuration further limits heat build-up in individual sections, resulting in more stable output on hot days. ### Are Longi Hi-MO 4m LR4-60HPB panels compatible with standard inverters and mounting systems? Yes, the dimensions of 1755×1038×35 mm and a weight of 19.5 kg fall within standard norms for 120-cell format modules. The panel is compatible with common roof and ground-mount racking systems and with inverters in the MPPT voltage range of 30-45 V. The open-circuit voltage range for the 355-375 W series allows several modules per string without exceeding the input limits of popular single-phase 3-6 kW inverters. ### How does the Longi Hi-MO 4m LR4-60HPB compare to the Hi-MO 5 series, and is buying Hi-MO 4m on the secondary market worth it? The Hi-MO 4m is a 120 half-cut PERC module with 9-busbar technology, a maximum power of 375 W, and efficiency up to 19.55%. The newer Hi-MO 5 series introduced a larger M10 wafer format, power output above 540 W, and improved degradation resistance. Purchasing Hi-MO 4m on the secondary market can make sense when expanding an existing installation based on this series to maintain consistent string parameters. For a new build, newer series deliver a better cost-to-yield ratio. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Hi-MO-4m-LR-4-60-HPB-355-375-M-35-30-V16-7af7004d9f-e125fb8af832.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +3.3 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +3.3 pp | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | -40 W, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +3.2 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +3.2 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, +3.2 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 | +40 W, +3.2 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 | +40 W, +3.2 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, +3.2 pp, +5 yr warranty | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +2.8 pp, +15 yr warranty | | [Longi Solar LR4-60HPB-355M](https://comparepv.com/panel/longi-lr4-60hpb-355m) | 355 W | -0.3 pp | | [Longi Solar LR4-60HPB-365M](https://comparepv.com/panel/longi-lr4-60hpb-365m) | 365 W | Very close match | | [Longi Solar LR4-60HPB-370M](https://comparepv.com/panel/longi-lr4-60hpb-370m) | 370 W | +10 W, +0.5 pp | | [Longi Solar LR4-60HPB-375M](https://comparepv.com/panel/longi-lr4-60hpb-375m) | 375 W | +15 W, +0.8 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +150 W, cooler, +5.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +135 W, cooler, +5.0 pp | --- Source: https://comparepv.com/panel/longi-lr4-60hpb-360m Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.