--- title: "Rarlon PV Tech RL350HM-72 350W Solar Panel - Specs & Review | ComparePV" description: "Rarlon PV Tech RL350HM-72 350W solar panel. Specs: 18.04% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/rarlon-pv-tech-rl350hm-72" updated: 2026-09-11 --- # Rarlon PV Tech RL350HM-72 Middle of its segment, weak in heat 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Rarlon PV Tech - **Model:** RL350HM-72 - **Series:** Monocrystalline72 Black - **Rated power:** 350 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) | 350 W | 380 W | Weak - bottom 2% | | | Module efficiency | 18.04% | 19.90% | Weak - bottom 6% | 13,223 | | Power density | 180.4 | 199.0 | Weak - bottom 6% | 13,204 | | Temperature coefficient | -0.470 | -0.350 | Weak - bottom 1% | 13,879 | | Weight (kg) | 22.0 kg | 21.4 kg | Weak - bottom 16% | | | Performance warranty | - | 25 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 18.04% | 19.90% | Weak - bottom 6% | 13,223 | | Power density | 180.4 | 199.0 | Weak - bottom 6% | 13,204 | | Temperature coefficient | -0.470 | -0.350 | Weak - bottom 1% | 13,879 | | Weight per kWp | 62.9 | 55.8 | Weak - bottom 16% | 12,828 | | 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. - **180.4 watts per square metre** - Bottom 6% of the PERC 350-400 W segment, against a median of 199.0. Ranked 13,204th in the whole database. - **18.04% module efficiency** - Bottom 6% of the PERC 350-400 W segment, against a median of 19.90%. Ranked 13,223rd in the whole database. - **Best for:** Commercial and hot-climate. - **Not ideal for:** Hot climates, roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 350 W - **Efficiency:** 18.04 % - **Voltage at Pmax (Vmp):** 38.11 V - **Current at Pmax (Imp):** 9.18 A - **Open-circuit voltage (Voc):** 46.89 V - **Short-circuit current (Isc):** 9.64 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:** 180.4 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13223 of 14005 | | Power density | 13204 of 14005 | | Temperature coefficient | 13879 of 14005 | | Weight | 12828 of 14005 | | Warranty | 13880 of 14005 | ## Pros - **Solid efficiency for PERC technology** - Efficiency up to 19.23% falls within the typical range for PERC cells and is comparable to many still-available modules of this generation, though newer N-type technologies (TOPCon/HJT) already reach 20-22%. - **Low temperature coefficient** - The declared low power temperature coefficient limits generation losses during summer heat, which matters practically at typical module operating temperatures of 45-65°C on rooftops in Poland. - **Reinforced frame for snow and wind loads** - The frame construction is designed for extreme mechanical loads, increasing safety for installations in open areas, e.g. PV farms, exposed to strong wind and snow accumulation. - **72-cell architecture lowers installation costs** - The larger module format (72 cells, up to 370 Wp) reduces the number of mounting rails and clamps per MW installed compared to smaller 60-cell panels, lowering CAPEX for utility-scale installations. - **Anti-PID protection and sleek black finish** - Advanced PID resistance limits power degradation under high humidity and system voltage stress, while the uniform black finish is an asset in projects where installation aesthetics matter. ## Cons - **Production discontinued** - The Monocrystalline72 Black series is no longer manufactured, meaning limited availability of warranty service, replacement parts, and difficulty sourcing identical modules for future system expansion. - **Efficiency below peer median** - Maximum efficiency of 19.23% is lower than comparable 370 Wp modules from competitors: Solitek SOLID Bifacial (19.57%), Solarwatt Panel vision GM 3.0 (19.9%), and Selfa SV120M.3.2 (20.3%) - a gap of more than 1 percentage point. - **No bifacial technology** - Unlike the competing Solitek SOLID Bifacial at the same 370 Wp power class, the Rarlon series offers no double-sided generation, eliminating a potential additional 5-15% yield from albedo in ground-mount or high-reflectivity roof installations. - **Manufacturer outside mainstream Tier-1 classification** - Ningbo Rarlon Photovoltaic Technology is a smaller Chinese manufacturer not listed in standard BNEF Tier 1 rankings, which can complicate bankability for large PV farm financing compared to Solarwatt or other Tier-1-listed brands. ## About this series The Rarlon PV Tech Monocrystalline 72 Black series focuses on delivering high efficiency in large-scale systems, combining elegance with industrial durability. The use of **high-density monocrystalline cells** allows for better performance parameters in diffused light conditions, which is crucial for efficiency in the Polish climate zone. These modules eliminate the problem of rapid power degradation thanks to advanced protection against the PID effect, which sets them apart from standard market solutions. Thanks to the 72-cell architecture, investors can reduce installation costs by optimizing the number of rails and clamps while maintaining high power per square meter. The **reinforced frame construction** guarantees safety in the face of extreme weather events, such as strong winds or heavy snow loads, making them an ideal choice for open spaces. The aesthetic black finish makes these panels a popular choice for projects where the appearance of the installation must harmonize with modern surroundings. The product features a **low temperature coefficient**, which minimizes energy losses during summer heat. This solution is dedicated primarily to solar farms and large commercial facilities, for which the priority is **maximizing the return on investment** through long-term reliability and stability of the generated electricity. ## Notable figures - At 18.0% efficiency, this panel is 1.4pp below the \*\*PERC 0-400W\*\* median of 19.4% - 180.4 W/m² power density is 14.0 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - requires larger installation area - Temperature coefficient of -0.47%/°C is 0.11pp worse than \*\*PERC 0-400W\*\* median (-0.36%/°C) - higher losses in summer heat - At 22.0 kg (1.5 kg above \*\*PERC 0-400W\*\* median of 20.5 kg), requires checking roof load capacity - Ranked #13223 out of 14005 panels for efficiency in the database ## Questions ### Is the Rarlon PV Tech Monocrystalline72 Black series still available for purchase? The Monocrystalline72 Black series has been discontinued and is no longer actively offered by Rarlon PV Tech. Some distributors may still carry limited stock. If you are looking for a comparable solution — a high-power monocrystalline PERC panel for commercial installations — we recommend checking the manufacturer's current lineup or contacting an authorized reseller. ### What is the peak power output of the Rarlon PV Tech Monocrystalline72 Black panels, and how many modules do I need for a 1 MWp solar farm? The Monocrystalline72 Black series delivers a peak power of 370 Wp per module. Building a 1 MWp solar farm would require approximately 2,703 modules. The 72-cell architecture reduces the number of cable runs and mounting hardware, directly lowering Balance of System (BoS) costs across the entire installation. ### Does PERC technology in the Monocrystalline72 Black series improve performance on overcast, low-irradiance days? Yes. PERC cells feature a passivation layer on the rear side that reflects unused photons back into the silicon structure. Combined with high-density monocrystalline cells, this delivers better output under diffuse light conditions — common in Polish and Central European climates during fall and winter — compared to standard polycrystalline cells. ### How does the 72-cell layout of the Monocrystalline72 Black differ from popular 60- and 66-cell modules? A 72-cell configuration produces a higher open-circuit voltage (Voc) than 60- or 66-cell modules using the same cell technology. This allows more panels to be strung together without exceeding the inverter's MPPT voltage window, reducing the total number of strings and simplifying wiring in large-scale systems. The outcome is lower installation costs and reduced resistive losses. ### Does the all-black finish of the Monocrystalline72 Black panels cause overheating and reduce efficiency in summer? Black frames and a black backsheet may slightly raise the module's operating temperature compared to white backsheets. The Monocrystalline72 Black series compensates with a low temperature coefficient, minimizing power loss during summer heat. In practice, the impact on annual energy yield is marginal, while the all-black aesthetics make these panels an attractive choice for modern commercial projects. ### Can the Rarlon PV Tech Monocrystalline72 Black panels handle strong wind loads and heavy snow accumulation on an open solar farm? Yes. The Monocrystalline72 Black series features a reinforced frame engineered for extreme weather conditions, including high snow loads and strong wind gusts — critical for ground-mounted systems and solar farms exposed to open terrain. For exact mechanical load ratings, please refer to the module's datasheet. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/5ee9c81a2ed48-61b9e8670b35.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-300MH-72](https://comparepv.com/panel/ja-solar-ns-300mh-72) | 300 W | Cooler, lighter, +5.3 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +5.3 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +5.1 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +5.1 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -50 W, lighter, +5.0 pp | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | -30 W, lighter, +5.0 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -10 W, lighter, +5.0 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | +10 W, lighter, +5.0 pp | | [Gamko New Energy GKA210M380W (1/4\*4\*38)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-4-4-38) | 380 W | +30 W, lighter, +5.0 pp | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | +50 W, lighter, +5.0 pp | | [Rarlon PV Tech RL300HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl300hm-72) | 300 W | -50 W, -1.6 pp | | [Rarlon PV Tech RL310HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl310hp-72) | 310 W | -40 W, -2.1 pp | | [Rarlon PV Tech RL320HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl320hp-72) | 320 W | -30 W, -1.6 pp | | [Rarlon PV Tech RL330HP-72](https://comparepv.com/panel/rarlon-pv-tech-rl330hp-72) | 330 W | -20 W, -1.0 pp | | [Rarlon PV Tech RL340HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl340hm-72) | 340 W | -10 W, -0.5 pp | | [Rarlon PV Tech RL355HM-72](https://comparepv.com/panel/rarlon-pv-tech-rl355hm-72) | 355 W | +0.3 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +125 W, cooler, +6.0 pp | --- Source: https://comparepv.com/panel/rarlon-pv-tech-rl350hm-72 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.