--- title: "SpolarPV SP370GHM6-54L 370W Solar Panel - Specs & Review | ComparePV" description: "SpolarPV SP370GHM6-54L 370W solar panel. Specs: 18.94% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/spolarpv-sp370ghm6-54l" updated: 2026-09-11 --- # SpolarPV SP370GHM6-54L Middle of its segment, modest efficiency 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** SpolarPV - **Model:** SP370GHM6-54L - **Rated power:** 370 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) | 370 W | 380 W | Typical | | | Module efficiency | 18.94% | 19.90% | Weak - bottom 14% | 12,988 | | Power density | 189.8 | 199.0 | Weak - bottom 14% | 12,946 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight (kg) | 21.0 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 | 18.94% | 19.90% | Weak - bottom 14% | 12,988 | | Power density | 189.8 | 199.0 | Weak - bottom 14% | 12,946 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 56.8 | 55.8 | Typical | 10,847 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **18.94% module efficiency** - Bottom 14% of the PERC 350-400 W segment, against a median of 19.90%. - **189.8 watts per square metre** - Bottom 14% of the PERC 350-400 W segment, against a median of 199.0. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 370 W - **Efficiency:** 18.94 % - **Voltage at Pmax (Vmp):** 32.32 V - **Current at Pmax (Imp):** 11.69 A - **Open-circuit voltage (Voc):** 38.02 V - **Short-circuit current (Isc):** 12.40 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.350 %/degC - **Temperature coefficient of Voc:** -0.275 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** PERC - **Cell count:** 108 ### Physical - **Length:** 1721 mm - **Width:** 1133 mm - **Thickness:** 30 mm - **Weight:** 21.0 kg - **Area:** 1.95 m2 - **Power density:** 189.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 25 years - **Output guaranteed at end of warranty:** 84.8 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.55 % - **Output after 30 years:** 304 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 12988 of 14005 | | Power density | 12946 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 10847 of 14005 | | Warranty | 9798 of 14005 | ## Notable figures - At 18.9% efficiency, this panel is 0.5pp below the \*\*PERC 0-400W\*\* median of 19.4% - 189.8 W/m² power density is 4.7 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - requires larger installation area - At -0.35%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - Ranked #12988 out of 14005 panels for efficiency in the database ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/SPV-RYGB-088d0b83a608.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +4.2 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +4.2 pp | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | -50 W, +4.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +4.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +4.1 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, +4.1 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 | +30 W, +4.1 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 | +30 W, +4.1 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, +4.1 pp, +5 yr warranty | | [Maxeon SPR-MAX3-400-COM](https://comparepv.com/panel/maxeon-spr-max3-400-com) | 400 W | Cooler, +3.7 pp, +15 yr warranty | | [SpolarPV SP310RHM6-54L](https://comparepv.com/panel/spolarpv-sp310rhm6-54l) | 310 W | -60 W, -3.1 pp | | [SpolarPV SP350YHM6-54L](https://comparepv.com/panel/spolarpv-sp350yhm6-54l) | 350 W | -20 W, -1.0 pp | | [SpolarPV SP380GHM6-54L](https://comparepv.com/panel/spolarpv-sp380ghm6-54l) | 380 W | +10 W, +0.5 pp | | [SpolarPV SPV420-TM10-108](https://comparepv.com/panel/spolarpv-spv420-tm10-108) | 420 W | +50 W, +2.6 pp, +5 yr warranty | | [SpolarPV SPV425-TM10-108](https://comparepv.com/panel/spolarpv-spv425-tm10-108) | 425 W | +55 W, +2.9 pp, +5 yr warranty | | [SpolarPV SPV425-TM10-108BD](https://comparepv.com/panel/spolarpv-spv425-tm10-108bd) | 425 W | +55 W, +2.8 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +140 W, cooler, +6.1 pp | --- Source: https://comparepv.com/panel/spolarpv-sp370ghm6-54l Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.