--- title: "SP Enerji SP-335M72 335W Solar Panel - Specs & Review | ComparePV" description: "SP Enerji SP-335M72 335W solar panel. Specs: 20.01% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sp-enerji-sp-335m72" updated: 2026-09-11 --- # SP Enerji SP-335M72 Light for its output, no clear weak spot 286 panels in the segment PERC 300-350 W ## Identity - **Manufacturer:** SP Enerji - **Model:** SP-335M72 - **Series:** D6L\_K3A / Solar Power 320 W - 350 W (Mono-crystalline Photovoltaic Module) - **Rated power:** 335 W - **Cell technology:** PERC ## How it compares Compared against segment PERC 300-350 W (286 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 335 W | 325 W | Strong - top 22% | | | Module efficiency | 20.01% | 19.00% | Strong - top 11% | 12,197 | | Power density | 200.2 | 190.0 | Strong - top 10% | 12,187 | | Temperature coefficient | -0.370 | -0.360 | Typical | 13,081 | | Weight (kg) | 18.2 kg | 19.0 kg | Strong - top 3% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.01% | 19.00% | Strong - top 11% | 12,197 | | Power density | 200.2 | 190.0 | Strong - top 10% | 12,187 | | Temperature coefficient | -0.370 | -0.360 | Typical | 13,081 | | Weight per kWp | 54.3 | 60.0 | Strong - top 3% | 8,620 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Strengths - **54.3 kg per kWp** - Top 3% of the PERC 300-350 W segment, against a median of 60.0. Ranked 8,620th in the whole database. - **200.2 watts per square metre** - Top 10% of the PERC 300-350 W segment, against a median of 190.0. Ranked 12,187th in the whole database. - **20.01% module efficiency** - Top 11% of the PERC 300-350 W segment, against a median of 19.00%. - **Best for:** Residential and commercial. ## Specification ### Electrical - **Rated power (Pmax):** 335 W - **Efficiency:** 20.01 % - **Voltage at Pmax (Vmp):** 34.62 V - **Current at Pmax (Imp):** 9.68 A - **Open-circuit voltage (Voc):** 41.20 V - **Short-circuit current (Isc):** 10.12 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.370 %/degC - **Temperature coefficient of Voc:** -0.280 %/degC - **Temperature coefficient of Isc:** 0.048 %/degC - **NOCT:** 44 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 60 ### Physical - **Length:** 1670 mm - **Width:** 1002 mm - **Thickness:** 35 mm - **Weight:** 18.2 kg - **Area:** 1.67 m2 - **Power density:** 200.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 10 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 3.00 % - **Annual degradation:** 0.50 % - **Output after 30 years:** 276 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12197 of 14005 | | Power density | 12187 of 14005 | | Temperature coefficient | 13081 of 14005 | | Weight | 8620 of 14005 | | Warranty | 9798 of 14005 | ## About this series The SP Enerji D6L\_K3A / Solar Power 320 W - 350 W series consists of monocrystalline modules designed for stable operation in real roof and ground conditions, where predictable power output and easy maintenance are crucial. The use of **monocrystalline cells** ensures high efficiency in a limited area, while the refined module design helps maintain performance even in less sunny conditions and with partial cloud cover. In practice, this series solves common problems for installers and investors: it simplifies compatibility with popular inverters, provides **resistance to mechanical loads** (important in snowy and windy conditions), and ensures **safe operation** of the installation thanks to robust electrical components and a sealed junction box. These modules are a good choice for single-family homes, small and medium-sized businesses, and commercial projects where repeatability of parameters and ease of maintenance are important. Compared to the competition, they stand out due to their **balanced combination of durability and ease of installation** - without compromises that only become apparent after several seasons of operation. ## Notable figures - Efficiency of 20.0% is 0.6pp above the \*\*PERC 0-400W\*\* median (19.4%) - Power density of 200.2 W/m² packs 5.8 W/m² more into the same footprint vs \*\*PERC 0-400W\*\* median (194.4 W/m²) - At -0.37%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - Weight of 18.2 kg (2.3 kg below \*\*PERC 0-400W\*\* median of 20.5 kg) allows easier transport and roof mounting - Ranked #12197 out of 14005 panels for efficiency in the database ## Questions ### Is the SP Enerji D6L\_K3A / Solar Power 320–350 W series still available for purchase? The D6L\_K3A / Solar Power 320–350 W series has been discontinued and is no longer available as new stock. Limited quantities may still exist in distributor warehouses, but availability is restricted. If you are planning a new installation, we recommend considering current SP Enerji models or equivalent alternatives to ensure full warranty coverage and long-term serviceability. ### What warranty does the SP Enerji Solar Power 340 W D6L\_K3A series carry? The manufacturer offered a 10-year product warranty covering materials and workmanship, along with a 25-year linear power output warranty ensuring the modules retain at least 80% of their rated power over a quarter century. Since the series is discontinued, buyers sourcing second-hand units should verify the original installation date to determine how much warranty coverage remains. ### What is PERC technology used in the SP Enerji D6L\_K3A, and is it worth choosing? PERC (Passivated Emitter and Rear Cell) adds a passivation layer on the rear side of a monocrystalline cell, reflecting photons that would otherwise be lost and boosting conversion efficiency. The D6L\_K3A series reaches up to 350 W in a compact footprint. PERC performs particularly well in limited roof space and under diffuse irradiance, making it a solid choice for Central European climates with frequent cloud cover. ### How do SP Enerji Solar Power 340 W modules perform under partial shading and overcast conditions? Mono PERC cells in the D6L\_K3A series are more efficient under low-irradiance and diffuse light conditions than older polycrystalline cells, which makes them well-suited for regions with frequent overcast skies. The manufacturer specifically designed this series for predictable energy yield in real-world rooftop conditions, resulting in more consistent annual production figures even on cloudy days. ### Can SP Enerji D6L\_K3A panels handle snow loads and high wind conditions? The D6L\_K3A series was engineered with mechanical durability in mind, featuring an aluminum alloy frame and tempered glass that typically handle snow loads up to 5,400 Pa and wind loads up to 2,400 Pa. Since the series spans 320–350 W with potentially varying dimensions, verify the exact static load ratings in the datasheet for your specific batch before finalizing the mounting system design. ### Are SP Enerji Solar Power 320–350 W modules compatible with standard inverters available in Europe? Yes, the D6L\_K3A series operates within voltage and current parameters typical for 320–350 W PERC modules, ensuring broad compatibility with inverters widely used in Europe, including Fronius, SMA, Huawei, and Solis. Open-circuit voltage Voc is typically around 40–41 V and short-circuit current Isc around 9–10 A. Always cross-check the datasheet against your inverter's MPPT input range and string sizing requirements before commissioning. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/sp-315m60-sp-320m60-sp-325m60-sp-330m60-sp-335m60-sp-340m60-cce4b5055fcd.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, +3.3 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +3.3 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +3.1 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +3.1 pp | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | -50 W, lighter, +3.0 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -35 W, +3.0 pp, +5 yr warranty | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | Lighter, +3.0 pp, +5 yr warranty | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +3.0 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | +25 W, +3.0 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 | +45 W, +3.0 pp, +5 yr warranty | | [SP Enerji SP-315M72](https://comparepv.com/panel/sp-enerji-sp-315m72) | 315 W | -20 W, -1.2 pp | | [SP Enerji SP-320M72](https://comparepv.com/panel/sp-enerji-sp-320m72) | 320 W | -15 W, -0.9 pp | | [SP Enerji SP-325M72](https://comparepv.com/panel/sp-enerji-sp-325m72) | 325 W | -10 W, -0.6 pp | | [SP Enerji SP-330M72](https://comparepv.com/panel/sp-enerji-sp-330m72) | 330 W | -0.3 pp | | [SP Enerji SP-340M72](https://comparepv.com/panel/sp-enerji-sp-340m72) | 340 W | +0.3 pp | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +105 W, cooler, +2.9 pp | --- Source: https://comparepv.com/panel/sp-enerji-sp-335m72 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.