--- title: "Longi Solar LR5-72HTH-600M Solar Panel: Specs & Datasheet | ComparePV" description: "Longi Solar LR5-72HTH-600M solar panel. Specs: 23.20% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/longi-lr5-72hth-600m" image: "https://comparepv.com/og/panel/longi-lr5-72hth-600m.png" updated: 2026-09-11 --- # Longi Solar LR5-72HTH-600M Light for its output, short guarantee 6,209 panels in the 500-700 W band, all technologies ## Identity - **Manufacturer:** Longi Solar - **Model:** LR5-72HTH-600M - **Series:** Hi-MO X6 Scientist LR5-72HTH 590~600M - **Rated power:** 600 W - **Cell technology:** Monocrystalline ## How it compares Compared against 500-700 W band, all technologies (6209 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 600 W | 590 W | Typical | | | Module efficiency | 23.20% | 22.26% | Strong - top 13% | 1,349 | | Power density | 232.3 | 222.6 | Strong - top 13% | 1,295 | | Temperature coefficient | -0.290 | -0.300 | Typical | 2,220 | | Weight (kg) | 27.2 kg | 31.5 kg | Strong - top 5% | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 11% | 9,912 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.20% | 22.26% | Strong - top 13% | 1,349 | | Power density | 232.3 | 222.6 | Strong - top 13% | 1,295 | | Temperature coefficient | -0.290 | -0.300 | Typical | 2,220 | | Weight per kWp | 45.3 | 52.8 | Strong - top 5% | 693 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 11% | 9,912 | ### Strengths - **45.3 kg per kWp** - Top 5% of the 500-700 W band, against a median of 52.8. Ranked 693rd in the whole database. - **232.3 watts per square metre** - Top 13% of the 500-700 W band, against a median of 222.6. - **23.20% module efficiency** - Top 13% of the 500-700 W band, against a median of 22.26%. ### Watch out for - **25 year performance warranty** - Bottom 11% of the 500-700 W band, against a median of 30 yrs. - **Best for:** Commercial, utility-scale and hot-climate. - **Not ideal for:** Owners who want a long output guarantee. ## Specification ### Electrical - **Rated power (Pmax):** 600 W - **Efficiency:** 23.20 % - **Voltage at Pmax (Vmp):** 44.66 V - **Current at Pmax (Imp):** 13.44 A - **Open-circuit voltage (Voc):** 52.81 V - **Short-circuit current (Isc):** 14.46 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.230 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell count:** 144 ### Physical - **Length:** 2278 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 27.2 kg - **Area:** 2.58 m2 - **Power density:** 232.3 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 88.9 % - **First-year degradation:** 1.50 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 521 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1349 of 14129 | | Power density | 1295 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 693 of 14129 | | Warranty | 9912 of 14129 | ## Pros - **HPBC+ back-contact cell technology** - Moving contacts to the cell's rear eliminates front-side metallization shading, and combined with a multi-layer anti-reflection coating this improves short-circuit current by ~2.25% and cuts reflection of diffuse light by ~12%. The soft-breakdown feature reduces partial-shading power losses by up to 70% versus comparable TOPCon modules. - **Low power temperature coefficient** - The Pmax temperature coefficient is -0.29%/°C (per ENF/datasheet), better than typical TOPCon modules (around -0.30% to -0.34%/°C). In high-roof-temperature climates (industrial rooftops, PV farms) this translates into higher real-world energy yield than STC efficiency alone would suggest. - **High power density, smaller footprint** - Efficiency up to 23.2% and power up to 600 Wp reduce the number of modules needed for a given installed capacity, lowering mounting structure, cabling, and other BoS costs - a key advantage for C&I projects with limited roof area. - **Low degradation and stable supply** - The module shows about 1% first-year degradation and roughly 0.35% linear annual degradation thereafter, backed by a 98.5% power guarantee at year 1 and 88.9% at year 25. LONGi Solar is a Tier-1, bankable manufacturer founded in 2000, and this series, launched in 2022, remains in active production, ensuring service and parts availability. ## Cons - **No bifacial version available** - Unlike comparable N-type series with similar or higher efficiency - Powitt M10 (23.23%, dual-glass bifacial) or Tongwei TWMND 72HD (23.2%, bifacial) - the Hi-MO X6 Scientist LR5-72HTH is monofacial only. This stems from the HPBC design (rear-side contacts) but means no additional albedo-driven yield typical for ground-mount installations and high-reflectivity roofs (potentially 5-10% extra energy). - **Power warranty shorter than leading N-type peers** - The standard 15-year product warranty and 25-year power warranty (88.9%) are typical for the segment but trail the latest flagship N-type modules from competitors, e.g. Jinko Tiger Neo's 30-year linear power warranty. For investors modeling LCOE over a 30-year horizon, this can mean less favorable degradation assumptions after year 25. ## About this series The Longi Solar Hi-MO X6 Scientist LR5-72HTH 590-600M series was designed to maximize energy yield from every square meter, particularly in high-power density and fast installation scenarios. The key advantage is the application of **HPBC+ (back-contact) cell technology**, which creates a more optically "clean" module front side while collecting current more efficiently. This translates to better performance under dispersed light and more stable parameters in real-world conditions. In practice, these modules help reduce the required installation surface area, thereby lowering BOS construction and equipment costs. Additionally, the series prioritizes **high resilience and reliability in challenging conditions** - ideal for industrial rooftops, utility-scale farms, and high-temperature locations. Versions with reinforced structures and solutions enhancing durability support longer, predictable operation. This is an excellent choice for investors seeking **high efficiency at elevated temperatures**, for EPCs looking for project optimization, and for Commercial & Industrial (C&I) installations where **maximizing yield from limited space** is crucial. Compared to many standard PERC modules, the Hi-MO X6 Scientist stands out with its modern cell architecture and focus on field performance, not just catalog data. ## Notable figures - Efficiency of 23.2% is 1.4pp above the \*\*database\*\* median (21.8%) - Power density of 232.3 W/m² packs 14.2 W/m² more into the same footprint vs \*\*database\*\* median (218.1 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*database\*\* median - #1349 for efficiency, #2220 for temperature performance out of 14129 panels ## Questions ### What is HPBC+ technology in the LONGi Hi-MO X6 Scientist series and why does it matter? HPBC+ (High-Performance Back Contact) moves all current-collecting electrodes to the rear side of the cell, leaving the front surface fully exposed to sunlight. This eliminates shading from metal busbars, pushes cell efficiency above 25.8%, and improves low-light performance. For locations with frequent overcast conditions, the gain in diffuse-light harvesting results in a measurable increase in annual energy yield compared to conventional front-contact designs. ### What warranty does the LONGi Hi-MO X6 Scientist LR5-72HTH 590-600M come with? The Hi-MO X6 Scientist LR5-72HTH carries a 15-year product warranty covering manufacturing defects and a 25-year linear power warranty guaranteeing at least 87.4% of rated output at end of life. LONGi Solar holds Tier 1 status per BloombergNEF, which supports the long-term credibility of these warranty commitments over the module's operational lifetime. ### How does the Hi-MO X6 Scientist perform during summer heat? Very well compared to most alternatives. The temperature coefficient of Pmax is only -0.29%/°C, whereas standard PERC modules typically run -0.34 to -0.36%/°C. At a cell temperature of 70°C, the difference can reach 1.5-2% of output power - a meaningful revenue advantage for large C&I rooftops or ground-mount PV plants operating through peak summer months. ### Is the LONGi LR5-72HTH 600M suitable for industrial or commercial rooftop installations? Yes. The module measures 2278×1134×35 mm and weighs 27.5 kg, with a front load rating of 5400 Pa and rear load of 2400 Pa. At up to 600 Wp per panel, fewer modules are needed for a given capacity, directly reducing BoS costs. An IP68-rated junction box and certified hail resistance (25 mm diameter at 23 m/s) ensure reliability on demanding industrial rooftops and utility-scale PV farms. ### How does the LONGi Hi-MO X6 Scientist compare to standard PERC modules in the same power class? The core difference lies in cell architecture. Typical 72-cell PERC modules reach 20.5-21.5% efficiency, while the Hi-MO X6 Scientist with HPBC+ reaches up to 23.2%. Eliminating front-side metal grids also improves diffuse-light performance. The module is monofacial, so installation is straightforward without albedo optimization requirements, but it does not capture reflected ground irradiance the way bifacial panels do. ### How many cells does the Hi-MO X6 Scientist LR5-72HTH have, and does the half-cut design help with partial shading? The module uses 144 half-cut HPBC+ cells split into two independent electrical halves. When a chimney, antenna, or roof edge partially shades the panel, only one half is affected rather than the entire string. This reduces mismatch losses and keeps output more stable on complex rooftops. A secondary benefit is lower resistive losses per cell, since the operating current in each half-cell is reduced by roughly half. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/l-gi-le-pm-t-pmd-059-f141-lr-5-72-hth-590-600-m-30-30-and-15-0fb270eb2f13.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +50 W, +2.0 pp, +5 yr warranty | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +45 W, +1.8 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | -40 W, +1.6 pp, +5 yr warranty | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +40 W, +1.6 pp, +5 yr warranty | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | -45 W, +1.4 pp, +5 yr warranty | | [AIKO AIKO-A635-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a635-mae72mw) | 635 W | +35 W, +1.4 pp, +5 yr warranty | | [Longi Solar RL530HM](https://comparepv.com/panel/longi-solar-rl530hm) | 530 W | -70 W, hotter, -2.5 pp | | [Longi Solar RL535HM](https://comparepv.com/panel/longi-solar-rl535hm) | 535 W | -65 W, hotter, -2.3 pp | | [Longi Solar LR5-72HBD-540M](https://comparepv.com/panel/longi-lr5-72hbd-540m) | 540 W | -60 W, hotter, -2.3 pp | | [Longi Solar RL540HM](https://comparepv.com/panel/longi-solar-rl540hm) | 540 W | -60 W, hotter, -2.1 pp | | [Longi Solar LR5-72HPH-545M](https://comparepv.com/panel/longi-lr5-72hph-545m) | 545 W | -55 W, hotter, -2.1 pp | | [Longi Solar RL545HM](https://comparepv.com/panel/longi-solar-rl545hm) | 545 W | -55 W, hotter, -1.9 pp | | [Longi Solar LR5-72HBD-550M](https://comparepv.com/panel/longi-lr5-72hbd-550m) | 550 W | -50 W, hotter, -1.9 pp | | [Longi Solar RL550HM](https://comparepv.com/panel/longi-solar-rl550hm) | 550 W | -50 W, hotter, -1.7 pp | | [AIKO AIKO-A630-MAH72Dw](https://comparepv.com/panel/aiko-aiko-a630-mah72dw) | 630 W | Heavier, +1.2 pp, +5 yr warranty | --- Source: https://comparepv.com/panel/longi-lr5-72hth-600m Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.