--- title: "Rarlon PV Tech RL380HM-72 380W Solar Panel - Specs & Review | ComparePV" description: "Rarlon PV Tech RL380HM-72 380W solar panel. Specs: 19.58% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/rarlon-pv-tech-rl380hm-72" updated: 2026-09-11 --- # Rarlon PV Tech RL380HM-72 Middle of its segment, weak in heat 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Rarlon PV Tech - **Model:** RL380HM-72 - **Series:** Monocrystalline72 - **Rated power:** 380 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) | 380 W | 380 W | Typical | | | Module efficiency | 19.58% | 19.90% | Typical | 12,623 | | Power density | 195.8 | 199.0 | Typical | 12,595 | | Temperature coefficient | -0.470 | -0.350 | Weak - bottom 1% | 13,879 | | Weight (kg) | 22.0 kg | 21.4 kg | Typical | | | Performance warranty | - | 25 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 19.58% | 19.90% | Typical | 12,623 | | Power density | 195.8 | 199.0 | Typical | 12,595 | | Temperature coefficient | -0.470 | -0.350 | Weak - bottom 1% | 13,879 | | Weight per kWp | 57.9 | 55.8 | Typical | 11,470 | | Performance warranty | - | 25 yrs | | | ### Watch out for - **-0.470 %/°C temperature coefficient** - Bottom 1% of the PERC 350-400 W segment, against a median of -0.350. Ranked 13,879th in the whole database. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 380 W - **Efficiency:** 19.58 % - **Voltage at Pmax (Vmp):** 38.59 V - **Current at Pmax (Imp):** 9.85 A - **Open-circuit voltage (Voc):** 47.38 V - **Short-circuit current (Isc):** 11.46 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.470 %/degC - **Temperature coefficient of Voc:** -0.346 %/degC - **Temperature coefficient of Isc:** 0.036 %/degC - **NOCT:** 47 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 72 ### Physical - **Length:** 1956 mm - **Width:** 992 mm - **Thickness:** 40 mm - **Weight:** 22.0 kg - **Area:** 1.94 m2 - **Power density:** 195.8 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12623 of 14005 | | Power density | 12595 of 14005 | | Temperature coefficient | 13879 of 14005 | | Weight | 11470 of 14005 | | Warranty | 13880 of 14005 | ## Pros - **Wide power range of 300–385 Wp** - The series offers 5 power variants spanning 300–385 Wp, allowing selection for both smaller commercial installations and large PV farms without changing the platform design. - **Full PID resistance** - The manufacturer claims full resistance to Potential Induced Degradation (PID), eliminating the risk of sudden power loss under high humidity and system voltage conditions typical of large farm-scale installations. - **Reinforced frame for snow and wind loads** - The reinforced mechanical frame enables safe installation in regions with elevated snow and wind loads, reducing the risk of microcracks and structural failure under harsher climate conditions. - **72-cell format built for commercial installations** - The standard 72-cell format is optimized for large rooftop and ground-mount installations, lowering per-kWp mounting structure and cabling costs. - **Selected monocrystalline cells** - Precise cell binning is intended to reduce parameter variance within a production batch, resulting in more predictable energy yield across the whole installation. ## Cons - **Efficiency below peer segment** - The maximum efficiency of 19.84% is noticeably lower than comparable 385 Wp modules — Solarwatt Panel vision GM 3.0 pure (20.7%), Suntech Ultra S mini (21.1%), and JA Solar JAM60D20 (20.6%). At the same power rating, the Rarlon panel requires a larger mounting area. - **PERC technology without confirmed TOPCon/N-type migration** - The series relies exclusively on PERC cells, while comparable modules reaching 20.6–21.1% efficiency point to more advanced cell technologies — suggesting Rarlon lags the current technological front of the segment. - **No confirmed BNEF Tier-1 status** - The manufacturer does not appear on current BloombergNEF Tier-1 lists, unlike comparable JA Solar. This can raise bankability concerns and long-term warranty service availability risk. ## About this series The Rarlon PV Tech Monocrystalline 72 series is an advanced solution designed to maximize energy yields while maintaining the highest mechanical durability. These panels utilize monocrystalline cells with high silicon purity, which, thanks to electron flow optimization, demonstrate excellent efficiency even in diffuse light conditions. The 72-cell design makes these modules ideal for large commercial installations and solar farms, where reducing the costs of support structures and cabling is key. The use of **full resistance to potential-induced degradation (PID)** technology guarantees stable system operation for decades, eliminating the risk of sudden power loss. A standout feature of the series is its **reinforced mechanical design**, which allows for safe installation in regions exposed to extreme snow loads and gusty winds. Thanks to **precise monocrystalline cell selection**, investors gain confidence that every kilowatt-hour is generated optimally. This is a product dedicated to professionals looking for a balance between innovative technology and a predictable return on investment. These panels effectively solve the problem of limited installation space, offering **above-average power density** per square meter, which significantly shortens the payback period for the entire photovoltaic system. ## Notable figures - At 19.6% efficiency, this panel is on par with typical \*\*PERC 0-400W\*\* modules - At 195.8 W/m² power density, roof space requirements are typical for \*\*PERC 0-400W\*\* panels - At -0.47%/°C, loses 0.11pp more power per degree than \*\*PERC 0-400W\*\* median (-0.36%/°C) - At 22.0 kg, this panel is 1.5 kg heavier than the \*\*PERC 0-400W\*\* median (20.5 kg) - more demanding for installation crews - Ranked #12623 out of 14005 panels for efficiency in the database ## Questions ### Are Rarlon PV Tech Monocrystalline72 panels suitable for utility-scale or large commercial solar installations? Yes, the Monocrystalline72 series is specifically engineered for large commercial and utility-scale PV projects. The 72-cell, 385 Wp format reduces the total module count per project, cutting balance-of-system (BoS) costs — fewer mounting structures, shorter DC cabling runs, and faster installation. The high power density per square meter directly lowers LCOE and shortens the overall system payback period. ### What is the product warranty and linear power output guarantee for the Rarlon PV Tech Monocrystalline72 series? Commercial 72-cell PERC modules in this segment typically carry a 10–12-year product warranty covering manufacturing defects and a 25-year linear power output guarantee ensuring at least 80–83% of rated power at end of term. The exact warranty conditions for the Monocrystalline72 series should be confirmed with an authorized Rarlon PV Tech distributor, as terms may vary by market. ### What is PERC cell technology and why is it used in the Monocrystalline72 series? PERC (Passivated Emitter and Rear Cell) technology adds a passivation layer to the rear of each solar cell, reflecting unabsorbed photons back through the silicon for a second conversion opportunity. Compared to standard BSF cells, PERC achieves higher module efficiency and better low-irradiance performance. In the Monocrystalline72 series, PERC cells are key to maximizing annual energy yield on commercial projects, especially under diffuse light conditions. ### What snow and wind load ratings do the Rarlon PV Tech Monocrystalline72 modules support? The Monocrystalline72 series features a reinforced mechanical design suited for installation in regions with extreme weather. Commercial modules of this format typically comply with IEC 61215 standards, supporting static snow loads up to 5,400 Pa and wind loads up to 2,400 Pa. This makes the series safe for deployment in high-snowfall and high-wind zones. Verify exact mechanical ratings in the current product datasheet. ### What is PID resistance and are the Monocrystalline72 modules protected against it? PID (Potential Induced Degradation) is power loss caused by high voltage stress between cells and the grounded module frame. In large commercial arrays operating at 1,000–1,500 V DC string voltages, PID can cause severe power drops — sometimes exceeding 30% — if unmitigated. The Monocrystalline72 series incorporates full PID resistance, eliminating this degradation mechanism and ensuring stable, predictable long-term output over the system lifetime. ### How do Rarlon PV Tech Monocrystalline72 panels perform in overcast or low-irradiance conditions? The Monocrystalline72 series uses high-purity monocrystalline PERC cells that maintain strong conversion efficiency even under diffuse light. The precise cell selection process minimizes low-irradiance losses, which is especially relevant in temperate Central European climates where a significant share of annual solar hours occur under partial cloud cover. This translates to better real-world energy yield compared to standard BSF mono or multicrystalline modules. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/5ee9c1339926f-68e0be899a51.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, +3.6 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +3.6 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -40 W, lighter, +3.4 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | -20 W, lighter, +3.4 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | Lighter, +3.4 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +20 W, lighter, +3.4 pp | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | +20 W, lighter, +3.4 pp | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +3.4 pp | | [Maxeon SPR-MAX3-430-R](https://comparepv.com/panel/maxeon-spr-max3-430-r) | 430 W | +50 W, cooler, +3.1 pp | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, lighter, +3.0 pp | | [Rarlon PV Tech RL300HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl300hm-72) | 300 W | -80 W, -3.1 pp | | [Rarlon PV Tech RL310HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl310hp-72) | 310 W | -70 W, -3.6 pp | | [Rarlon PV Tech RL320HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl320hp-72) | 320 W | -60 W, -3.1 pp | | [Rarlon PV Tech RL330HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl330hp-72) | 330 W | -50 W, -2.6 pp | | [Rarlon PV Tech RL340HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl340hm-72) | 340 W | -40 W, -2.1 pp | | [Rarlon PV Tech RL350HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl350hm-72) | 350 W | -30 W, -1.5 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +95 W, cooler, +4.4 pp | --- Source: https://comparepv.com/panel/rarlon-pv-tech-rl380hm-72 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.