--- title: "SP Enerji SP-400M72 400W Solar Panel - Specs & Review | ComparePV" description: "SP Enerji SP-400M72 400W solar panel. Specs: 20.17% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/sp-enerji-sp-400m72" updated: 2026-09-11 --- # SP Enerji SP-400M72 Middle of its segment, weak in heat 954 panels in the segment PERC 400-450 W ## Identity - **Manufacturer:** SP Enerji - **Model:** SP-400M72 - **Series:** D6L\_K3A - **Rated power:** 400 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 400-450 W (954 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 400 W | 410 W | Weak - bottom 9% | | | Module efficiency | 20.17% | 20.60% | Weak - bottom 18% | 12,061 | | Power density | 201.7 | 206.2 | Weak - bottom 19% | 12,016 | | Temperature coefficient | -0.370 | -0.350 | Weak - bottom 5% | 13,081 | | Weight (kg) | 23.5 kg | 22.0 kg | Weak - bottom 16% | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.17% | 20.60% | Weak - bottom 18% | 12,061 | | Power density | 201.7 | 206.2 | Weak - bottom 19% | 12,016 | | Temperature coefficient | -0.370 | -0.350 | Weak - bottom 5% | 13,081 | | Weight per kWp | 58.8 | 53.0 | Weak - bottom 16% | 11,876 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **-0.370 %/°C temperature coefficient** - Bottom 5% of the PERC 400-450 W segment, against a median of -0.350. Ranked 13,081st in the whole database. - **58.8 kg per kWp** - Bottom 16% of the PERC 400-450 W segment, against a median of 53.0. - **20.17% module efficiency** - Bottom 18% of the PERC 400-450 W segment, against a median of 20.60%. - **Best for:** Commercial. - **Not ideal for:** Hot climates, weight-limited structures and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 400 W - **Efficiency:** 20.17 % - **Voltage at Pmax (Vmp):** 41.54 V - **Current at Pmax (Imp):** 9.68 A - **Open-circuit voltage (Voc):** 48.09 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:** 46 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 72 - **Bifacial:** yes ### Physical - **Length:** 1979 mm - **Width:** 1002 mm - **Thickness:** 40 mm - **Weight:** 23.5 kg - **Area:** 1.98 m2 - **Power density:** 201.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 10 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 80.0 % - **First-year degradation:** 3.00 % - **Annual degradation:** 0.80 % - **Output after 30 years:** 295 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12061 of 14005 | | Power density | 12016 of 14005 | | Temperature coefficient | 13081 of 14005 | | Weight | 11876 of 14005 | | Warranty | 9798 of 14005 | ## About this series The SP Enerji D6L\_K3A series are bifacial modules designed to meet the real challenges of Polish installations - where stable production, even under reflected light from bright roofs, gravel, or snow, is crucial. The use of **a bifacial design** allows for better utilization of diffuse radiation, which translates into higher yields in more challenging solar conditions. Compared to the competition, it stands out due to its **enhanced mechanical durability**, which allows the modules to withstand wind and snow loads more effectively, as well as its **optimized PID resistance** - which is important in installations operating at high voltage and in humid environments. In addition, the manufacturer emphasizes **EL quality control**, which reduces the risk of microcracks and power drops over the long term. This is a good choice for PV farms, carports, and industrial roofs, where predictable performance, durability, and higher yields are the priority, without having to constantly chase specific parameters from tables. ## Notable figures - At 20.2% efficiency, this panel is on par with typical \*\*PERC 400-450W\*\* modules - Power density of 201.7 W/m² is 4.5 W/m² below \*\*PERC 400-450W\*\* median (206.2 W/m²) - needs more roof space - -0.37%/°C temperature coefficient - 0.02pp worse than \*\*PERC 400-450W\*\* median (-0.35%/°C), expect higher hot weather losses - Weight of 23.5 kg is 1.5 kg above \*\*PERC 400-450W\*\* median (22.0 kg) - verify structural support - #12061 for efficiency, #13081 for temperature performance out of 14005 panels ## Questions ### Is the SP Enerji D6L\_K3A series still available for purchase? The D6L\_K3A series has been discontinued and is no longer offered as a new product. If you are looking for bifacial PERC modules with similar specifications, ask your distributor about current alternatives in the SP Enerji portfolio or from other manufacturers. For existing installations, the product and linear power warranties remain valid under the terms issued at the time of purchase. ### What warranty comes with SP Enerji D6L\_K3A modules? The manufacturer provided a 10-year product warranty covering material and workmanship defects, along with a 25-year linear power warranty. This means the module should maintain output above the degradation threshold specified in the warranty document for a full quarter century. This is a standard level of protection for commercial-grade PV modules. ### Does the bifacial technology in the D6L\_K3A series actually increase energy yield? Yes, bifacial modules capture irradiance from both the front and rear sides of the panel. The gain is most pronounced over high-albedo surfaces such as gravel, white roofing membrane, or snow. In typical ground-mount and carport installations, rear-side contribution typically adds 5 to 15 percent of additional yield depending on ground albedo and tilt angle. ### What is the peak power of the SP Enerji D6L\_K3A and which installations is it suited for? The module delivers a maximum power output of 410 Wp under STC conditions. This rating suits prosumer installations on industrial rooftops as well as commercial PV farms and carports. When designing the system, verify the inverter MPPT voltage range, as bifacial PERC modules can produce short-term power surges when rear irradiance from reflective surfaces is added. ### How does the D6L\_K3A handle snow loads and wind pressure in Polish climate conditions? SP Enerji emphasized the enhanced mechanical strength of the D6L\_K3A series. Bifacial modules in this class are typically certified for snow loads up to 5400 Pa and wind loads up to 2400 Pa, which meets requirements for most locations in Poland. Always confirm the values in the datasheet and consult your installer, especially in high-snowfall zones. ### Are SP Enerji D6L\_K3A modules resistant to Potential Induced Degradation (PID)? The D6L\_K3A series was designed with optimized PID resistance, which is important for systems operating at high system voltage and in high-humidity environments common in Poland. PID resistance reduces the risk of irreversible power loss caused by leakage current through the cell structure, resulting in more predictable system performance over the full operational lifetime. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/167501401462293cdf4fef5-2acd271c2c14.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Luxor Solar LX-440M/182-108+GG](https://comparepv.com/panel/luxor-solar-lx-440m-182-108-gg) | 440 W | Cooler, +2.9 pp, +5 yr warranty | | [Just Solar JST-EDMH-(445-465)W-TD (450W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-450w-class) | 450 W | +50 W, cooler, +2.9 pp | | [Q-SUN Solar QNN182-HG450-54](https://comparepv.com/panel/qn-solar-pv-limited-qnn182-hg450-54) | 450 W | +50 W, cooler, +2.9 pp | | [Huayao HY440-N108BDD](https://comparepv.com/panel/huayao-hy440-n108bdd) | 450 W | +50 W, cooler, +2.9 pp | | [BYD NLBK-27-450](https://comparepv.com/panel/byd-nlbk-27-450) | 450 W | +50 W, cooler, +2.9 pp | | [Renesola RS41-450NBG-E3](https://comparepv.com/panel/renesola-rs41-450nbg-e3) | 450 W | +50 W, cooler, +2.9 pp | | [SP Enerji SP-385M72](https://comparepv.com/panel/sp-enerji-sp-385m72) | 385 W | -15 W, -0.8 pp | | [SP Enerji SP-390M72](https://comparepv.com/panel/sp-enerji-sp-390m72) | 390 W | -10 W, -0.5 pp | | [SP Enerji SP-395M72](https://comparepv.com/panel/sp-enerji-sp-395m72) | 395 W | -0.2 pp | | [SP Enerji SP-405M72](https://comparepv.com/panel/sp-enerji-sp-405m72) | 405 W | +0.2 pp | | [SP Enerji SP-410M72](https://comparepv.com/panel/sp-enerji-sp-410m72) | 410 W | +10 W, +0.5 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | Cooler, +3.8 pp, +15 yr warranty | | [Maxeon SPR-MAX7-470](https://comparepv.com/panel/maxeon-spr-max7-470) | 470 W | Cooler, +3.5 pp, +15 yr warranty | | [Maxeon SPR-MAX7-465](https://comparepv.com/panel/maxeon-spr-max7-465) | 465 W | Cooler, +3.3 pp, +15 yr warranty | | [Lina Energy LEPV 132 ULTRA PREMIUM BLACK 440Wp (LEPV 440)](https://comparepv.com/panel/lina-energy-lepv-132-ultra-premium-black-440wp-lepv-440) | 440 W | Cooler, +2.2 pp, +5 yr warranty | | [JA Solar NS-420MH-80](https://comparepv.com/panel/ja-solar-ns-420mh-80) | 420 W | Cooler, lighter, +2.1 pp | --- Source: https://comparepv.com/panel/sp-enerji-sp-400m72 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.