--- title: "Rarlon PV Tech RL350HP-144 350W Solar Panel - Specs & Review | ComparePV" description: "Rarlon PV Tech RL350HP-144 350W solar panel. Specs: 17.40% efficiency, Polycrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/rarlon-pv-tech-rl350hp-144" updated: 2026-09-11 --- # Rarlon PV Tech RL350HP-144 Middle of its segment, needs the roof space 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** Rarlon PV Tech - **Model:** RL350HP-144 - **Series:** RL340HP-360HP-144 - **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 | 17.40% | 19.90% | Weak - bottom 1% | 13,367 | | Power density | 174.0 | 199.0 | Weak - bottom 1% | 13,359 | | Temperature coefficient | -0.390 | -0.350 | Weak - bottom 3% | 13,579 | | Weight (kg) | 22.5 kg | 21.4 kg | Weak - bottom 13% | | | Performance warranty | - | 25 yrs | | | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 17.40% | 19.90% | Weak - bottom 1% | 13,367 | | Power density | 174.0 | 199.0 | Weak - bottom 1% | 13,359 | | Temperature coefficient | -0.390 | -0.350 | Weak - bottom 3% | 13,579 | | Weight per kWp | 64.3 | 55.8 | Weak - bottom 13% | 12,976 | | Performance warranty | - | 25 yrs | | | ### Watch out for - **174.0 watts per square metre** - Bottom 1% of the PERC 350-400 W segment, against a median of 199.0. Ranked 13,359th in the whole database. - **17.40% module efficiency** - Bottom 1% of the PERC 350-400 W segment, against a median of 19.90%. Ranked 13,367th in the whole database. - **-0.390 %/°C temperature coefficient** - Bottom 3% of the PERC 350-400 W segment, against a median of -0.350. Ranked 13,579th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 350 W - **Efficiency:** 17.40 % - **Voltage at Pmax (Vmp):** 39.11 V - **Current at Pmax (Imp):** 8.95 A - **Open-circuit voltage (Voc):** 47.10 V - **Short-circuit current (Isc):** 9.58 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.390 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Polycrystalline - **Cell technology:** PERC - **Cell count:** 144 ### Physical - **Length:** 2008 mm - **Width:** 1002 mm - **Thickness:** 35 mm - **Weight:** 22.5 kg - **Area:** 2.01 m2 - **Power density:** 174.0 Wp/m2 ### Warranty and degradation ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13367 of 14005 | | Power density | 13359 of 14005 | | Temperature coefficient | 13579 of 14005 | | Weight | 12976 of 14005 | | Warranty | 13880 of 14005 | ## Pros - **Positive power tolerance** - Modules feature a positive power tolerance, reducing the risk of underrated string output and making inverter sizing and yield forecasting more predictable for system designers. - **Robust mechanical build** - Tempered front glass and an anodized aluminum frame increase resistance to damage during transport, installation, and long-term exposure on roof or ground-mount systems, which matters for field crews handling frequent installs. - **High system voltage compatibility** - The panels support high system voltage operation, allowing longer strings and fewer inverters/thicker DC cabling runs to be avoided in larger commercial installations. - **Mature, proven series since 2019** - The RL340HP-360HP-144 series has been on the market since 2019 and remains in active production, giving it a multi-year field track record and available service documentation from the manufacturer (Ningbo Rarlon Photovoltaic Technology). - **Standard export-grade certification** - The panels hold TUV, CE, and ISO9001 certifications, meeting standard formal requirements for subsidized installations and allowing legal use in EU residential prosumer systems. ## Cons - **Efficiency below segment median** - Efficiency of 16.9-17.9% is noticeably lower than comparable 360 Wp modules: Corab Encor EC360M-6-120FB (19.27%), Bisol Spectrum (18%), and Just Solar IBC Mono (21.3%). At the same rated power, the Rarlon module requires a larger roof footprint. - **No confirmed BNEF Tier-1 status** - Rarlon PV Tech (Ningbo Rarlon Photovoltaic Technology) does not appear on publicly confirmed BNEF Tier-1 lists, unlike better-established brands such as Bisol. This may require extra due diligence from institutional buyers or bank-financed projects. ## About this series The Rarlon PV Tech RL340HP-360HP-144 series consists of modules based on a **144 polycrystalline** cell array, designed for stable operation in real-world conditions, including those where the installation is exposed to temperature fluctuations and the typical Polish periods of reduced sunlight. The design utilizes **tempered glass** and an **anodized aluminum frame**, which helps to minimize the risk of mechanical damage during transport and installation, and also facilitates long-term operation on rooftops or on the ground. A key advantage of this series is its **positive power tolerance**, which makes it easier to maintain the predictable performance of the entire string. The modules are designed for **high-voltage systems**, which will be appreciated by designers of larger systems and installers focused on optimizing wiring and minimizing losses. This is a sensible choice for single-family homes, small businesses, and commercial installations, where durability, consistent performance, and reliable operation over many years are important. ## Notable figures - At 17.4% efficiency, this panel is 2.1pp below the \*\*PERC 0-400W\*\* median of 19.4% - Power density of 173.9 W/m² is 20.5 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - needs more roof space - -0.39%/°C temperature coefficient - 0.03pp worse than \*\*PERC 0-400W\*\* median (-0.36%/°C), expect higher hot weather losses - Weight of 22.5 kg is 2.0 kg above \*\*PERC 0-400W\*\* median (20.5 kg) - verify structural support - In the top 95% for efficiency among all PERC panels ## Questions ### What is PERC technology in the Rarlon RL340HP-360HP-144 panels, and how does it differ from standard polycrystalline cells? PERC (Passivated Emitter and Rear Cell) technology adds a passivation layer on the rear surface of the cell, reflecting unabsorbed photons back into the silicon material. In practice, this results in higher conversion efficiency compared to standard polycrystalline cells and better energy harvest at low irradiance angles — an advantage in climates with frequent overcast conditions and low sun elevation during winter months. ### Do the Rarlon RL340HP-360HP-144 panels perform well in low-irradiance and cold-climate conditions? Yes. The RL340HP-360HP-144 series was designed for stable operation under temperature fluctuations and reduced solar irradiance typical of northern European climates. The 144-cell PERC polycrystalline layout maintains solid output under diffuse light conditions. Tempered glass and an anodized aluminum frame provide mechanical resistance to snow loads and frost, supporting long-term rooftop and ground-mount operation without major structural issues. ### What does positive power tolerance mean for the Rarlon RL340HP-360HP-144 series, and why does it matter? Positive power tolerance guarantees that every module delivers at least its rated peak power of up to 360 Wp, never less. When stringing multiple panels together, this ensures predictable string-level output — eliminating the risk of a single underperforming module reducing overall system yield. This is especially relevant in systems without per-module power optimizers, where string-level mismatch directly impacts MPPT efficiency. ### What warranty does Rarlon PV Tech offer on the RL340HP-360HP-144 panels? For this class of modules, Rarlon PV Tech typically provides a product warranty covering material and manufacturing defects (usually 10–12 years) and a 25-year linear power output performance warranty. Always request the current warranty certificate from your distributor, as specific terms may vary by market and production date. ### What does high system voltage compatibility mean for the Rarlon RL340HP-360HP-144 series, and why is it relevant for system design? The RL340HP-360HP-144 modules support system voltages up to 1000 V or 1500 V, allowing more panels to be connected in a single string. For system designers, this means fewer cable runs, lower balance-of-system (BoS) losses, and more efficient MPPT operation on the inverter side. This is a meaningful advantage in larger commercial installations and prosumer systems above 10 kWp, where wiring optimization directly impacts LCOE. ### Can the Rarlon RL340HP-360HP-144 panels be installed on both pitched roofs and ground-mount systems? Yes. The RL340HP-360HP-144 series is compatible with standard mounting systems for pitched roofs (standing seam, trapezoidal sheet, ceramic tile) as well as ground-mount structures. The anodized aluminum frame includes mounting holes compatible with common rails and mid/end clamps. Before installation, verify that the selected racking system meets the manufacturer's load and tilt angle specifications. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/360p-6feefce8975a.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [SunLink LNSK-340M](https://comparepv.com/panel/sunlink-lnsk-340m) | 340 W | Cooler, lighter, +2.7 pp | | [Canadian Solar CS3K-330P](https://comparepv.com/panel/canadian-solar-cs3k-330p) | 330 W | Cooler, lighter, +2.5 pp | | [Canadian Solar CS3K-335MB-AG](https://comparepv.com/panel/canadian-solar-cs3k-335mb-ag) | 335 W | -15 W, cooler, +2.5 pp | | [Canadian Solar CS3U-395P](https://comparepv.com/panel/canadian-solar-cs3u-395p) | 395 W | +45 W, cooler, +2.5 pp | | [SunLink LNSU-400M](https://comparepv.com/panel/sunlink-lnsu-400m) | 400 W | +50 W, cooler, +2.4 pp | | [SunLink LNSK-335M](https://comparepv.com/panel/sunlink-lnsk-335m) | 335 W | -15 W, cooler, +2.4 pp | | [Sunlike Solar LNSF-400M](https://comparepv.com/panel/sunlike-solar-lnsf-400m) | 400 W | +50 W, cooler, +2.4 pp | | [Canadian Solar CS3L-365P](https://comparepv.com/panel/canadian-solar-cs3l-365p) | 365 W | +15 W, cooler, +2.3 pp | | [Rarlon PV Tech RL340HP-144](https://comparepv.com/panel/rarlon-pv-tech-rl340hp-144) | 340 W | -10 W, -0.5 pp | | [Rarlon PV Tech RL345HP-144](https://comparepv.com/panel/rarlon-pv-tech-rl345hp-144) | 345 W | -0.3 pp | | [Rarlon PV Tech RL355HP-144](https://comparepv.com/panel/rarlon-pv-tech-rl355hp-144) | 355 W | +0.2 pp | | [Rarlon PV Tech RL360HP-144](https://comparepv.com/panel/rarlon-pv-tech-rl360hp-144) | 360 W | +10 W, +0.5 pp | | [Rarlon PV Tech RL400HM-144](https://comparepv.com/panel/rarlon-pv-tech-rl400hm-144) | 400 W | +50 W, +2.6 pp | | [Rarlon PV Tech RL405HM-144](https://comparepv.com/panel/rarlon-pv-tech-rl405hm-144) | 405 W | +55 W, +2.8 pp | | [Rarlon PV Tech RL410HM-144](https://comparepv.com/panel/rarlon-pv-tech-rl410hm-144) | 410 W | +60 W, +3.0 pp | | [Rarlon PV Tech RL415HM-144](https://comparepv.com/panel/rarlon-pv-tech-rl415hm-144) | 415 W | +65 W, +3.2 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | +125 W, cooler, +6.6 pp | --- Source: https://comparepv.com/panel/rarlon-pv-tech-rl350hp-144 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.