--- title: "SpolarPV SP390BSM6-72 390W Solar Panel - Specs & Review | ComparePV" description: "SpolarPV SP390BSM6-72 390W solar panel. Specs: 20.10% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/spolarpv-sp390bsm6-72" updated: 2026-09-11 --- # SpolarPV SP390BSM6-72 Middle of its segment, weak in heat 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** SpolarPV - **Model:** SP390BSM6-72 - **Series:** SPBSM6-72 - **Rated power:** 390 W - **Cell technology:** PERC - **Bifacial:** yes ## How it compares Compared against segment PERC 350-400 W (579 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 390 W | 380 W | Typical | | | Module efficiency | 20.10% | 19.90% | Typical | 12,102 | | Power density | 201.0 | 199.0 | Typical | 12,117 | | Temperature coefficient | -0.380 | -0.350 | Weak - bottom 7% | 13,397 | | Weight (kg) | 21.5 kg | 21.4 kg | Typical | | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.10% | 19.90% | Typical | 12,102 | | Power density | 201.0 | 199.0 | Typical | 12,117 | | Temperature coefficient | -0.380 | -0.350 | Weak - bottom 7% | 13,397 | | Weight per kWp | 55.1 | 55.8 | Typical | 9,554 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **-0.380 %/°C temperature coefficient** - Bottom 7% of the PERC 350-400 W segment, against a median of -0.350. Ranked 13,397th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 390 W - **Efficiency:** 20.10 % - **Voltage at Pmax (Vmp):** 41.62 V - **Current at Pmax (Imp):** 9.37 A - **Open-circuit voltage (Voc):** 48.97 V - **Short-circuit current (Isc):** 10.21 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.380 %/degC - **Temperature coefficient of Voc:** -0.330 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 72 - **Bifacial:** yes ### Physical - **Length:** 1956 mm - **Width:** 992 mm - **Thickness:** 40 mm - **Weight:** 21.5 kg - **Area:** 1.94 m2 - **Power density:** 201.0 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 85.0 % - **First-year degradation:** 2.50 % - **Annual degradation:** 0.52 % - **Output after 30 years:** 321 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12102 of 14005 | | Power density | 12117 of 14005 | | Temperature coefficient | 13397 of 14005 | | Weight | 9554 of 14005 | | Warranty | 9798 of 14005 | ## About this series The SPolarPV SPBSM6-72 series are large-format modules designed for high power density on rooftops and stable operation in varying conditions. The use of **monocrystalline PERC cells** and a **half-cut** architecture helps minimize losses due to heating and improves energy yield under partial shading - which is particularly important on rooftops with chimneys, skylights, or lightning protection systems. Furthermore, the **MBB multi-busbar technology** supports better current transport within the cell, resulting in more predictable annual energy production. This is a good option for installers and investors who want to combine efficiency with reliability - both in residential on-grid systems and in larger systems for warehouses, commercial buildings, or agricultural properties. The series also stands out for its refined design: **tempered glass** and a **sealed IP67-rated junction box** provide protection against moisture, dust, and typical operating loads. This allows SPBSM6-72 to effectively compete in areas where performance, durability, and easy integration with popular inverters are key. ## Notable figures - 20.1% module efficiency - 0.7pp better than the \*\*PERC 0-400W\*\* median of 19.4% - At 201.0 W/m² power density, this panel generates 6.6 W/m² more per unit area than \*\*PERC 0-400W\*\* median (194.4 W/m²) - At -0.38%/°C, loses 0.02pp more power per degree than \*\*PERC 0-400W\*\* median (-0.36%/°C) - Weight of 21.5 kg is typical for \*\*PERC 0-400W\*\* panels - In the top 86% for efficiency among all PERC panels ## Questions ### Is the SpolarPV SPBSM6-72 series still available for purchase? The SpolarPV SPBSM6-72 series has been discontinued and is no longer actively manufactured. Some units may still be available through distributors' existing stock, but availability should be confirmed before placing an order. If you need a comparable monocrystalline PERC half-cut module with similar power output, consult your supplier about current in-production alternatives. ### What warranty does the SpolarPV SPBSM6-72 series carry? SpolarPV provides a 12-year product warranty on the SPBSM6-72 series, covering defects in materials and workmanship. A separate 25-year linear power output warranty guarantees that the modules maintain a minimum performance level throughout that period. This warranty scope is standard for monocrystalline PERC modules used in both residential on-grid systems and larger commercial installations. ### Is the SPBSM6-72 a bifacial module, and what does that mean for my system? Yes, the SPBSM6-72 uses bifacial cell technology, allowing the module to generate power from both its front and rear surfaces. On highly reflective surfaces such as white TPO membranes, gravel, or snow, the rear side can increase annual energy yield by several percentage points. The actual gain depends on the albedo of the surface beneath the array and the mounting tilt angle. ### What is the peak power output of the SpolarPV SPBSM6-72, and is it enough for a home? The SpolarPV SPBSM6-72 has a peak power output of 390 Wp under Standard Test Conditions (STC: 1000 W/m², 25°C). For a typical single-family home consuming 4,000-5,000 kWh per year, 10 to 14 modules are generally sufficient. The half-cut cell architecture and multi-busbar (MBB) design help maintain reliable output even at elevated roof temperatures or under partial shading. ### Will the SPBSM6-72 perform well on a roof with chimneys or dormers? The SPBSM6-72 handles partial shading better than conventional full-cell modules, making it a practical choice for rooftops with chimneys, dormers, or lightning protection systems. The half-cut cell design splits each cell into two independently operating halves, so shading on one portion of the module does not eliminate output from the rest. The result is a meaningfully higher annual energy yield on complex residential rooftops. ### Is SpolarPV a Tier 1 manufacturer, and should I trust this brand? SpolarPV is not classified as a Tier 1 manufacturer under industry rankings such as BloombergNEF, meaning it does not appear on lists of bankable top-tier producers. It is important to note that Tier 1 status reflects a manufacturer's financing track record, not module quality directly. Before purchasing, verify local distributor warranty support, review available technical datasheets, and consult installers who have hands-on experience with this brand. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/928393758642c1bbc6b515-e5213515026a.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 | +50 W, cooler, +3.0 pp | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | -50 W, lighter, +2.9 pp | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +2.9 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 | Lighter, +2.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/2\*4\*20)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-2-4-20) | 400 W | Lighter, +2.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M400W (1/4\*4\*40)](https://comparepv.com/panel/gamko-new-energy-gka210m400w-1-4-4-40) | 400 W | Lighter, +2.9 pp, +5 yr warranty | | [Gamko New Energy GKA210M380W (1/2\*4\*19)](https://comparepv.com/panel/gamko-new-energy-gka210m380w-1-2-4-19) | 380 W | Lighter, +2.9 pp, +5 yr warranty | | [Jetion JT440SYK(B)](https://comparepv.com/panel/jetion-jt440syk-b) | 440 W | +50 W, cooler, +2.8 pp | | [SpolarPV SP355BSM6-72](https://comparepv.com/panel/spolarpv-sp355bsm6-72) | 355 W | -35 W, -1.8 pp | | [SpolarPV SP360BSM6-72](https://comparepv.com/panel/spolarpv-sp360bsm6-72) | 360 W | -30 W, -1.6 pp | | [SpolarPV SP365BSM6-72](https://comparepv.com/panel/spolarpv-sp365bsm6-72) | 365 W | -25 W, -1.3 pp | | [SpolarPV SP370BSM6-72](https://comparepv.com/panel/spolarpv-sp370bsm6-72) | 370 W | -20 W, -1.0 pp | | [SpolarPV SP375BSM6-72](https://comparepv.com/panel/spolarpv-sp375bsm6-72) | 375 W | -15 W, -0.8 pp | | [SpolarPV SP380BSM6-72](https://comparepv.com/panel/spolarpv-sp380bsm6-72) | 380 W | -10 W, -0.5 pp | | [SpolarPV SP385BSM6-72](https://comparepv.com/panel/spolarpv-sp385bsm6-72) | 385 W | -0.3 pp | | [Maxeon SPR-MAX7-475](https://comparepv.com/panel/maxeon-spr-max7-475) | 475 W | Cooler, +3.9 pp, +15 yr warranty | --- Source: https://comparepv.com/panel/spolarpv-sp390bsm6-72 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.