--- title: "SpolarPV SP350YHM6-54L 350W Solar Panel - Specs & Review | ComparePV" description: "SpolarPV SP350YHM6-54L 350W solar panel. Specs: 17.92% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/spolarpv-sp350yhm6-54l" updated: 2026-09-11 --- # SpolarPV SP350YHM6-54L Middle of its segment, modest efficiency 579 panels in the segment PERC 350-400 W ## Identity - **Manufacturer:** SpolarPV - **Model:** SP350YHM6-54L - **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 | 17.92% | 19.90% | Weak - bottom 5% | 13,243 | | Power density | 179.5 | 199.0 | Weak - bottom 5% | 13,219 | | 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 | 17.92% | 19.90% | Weak - bottom 5% | 13,243 | | Power density | 179.5 | 199.0 | Weak - bottom 5% | 13,219 | | Temperature coefficient | -0.350 | -0.350 | Typical | 10,419 | | Weight per kWp | 60.0 | 55.8 | Typical | 12,365 | | Performance warranty | 25 yrs | 25 yrs | Typical | 9,798 | ### Watch out for - **17.92% module efficiency** - Bottom 5% of the PERC 350-400 W segment, against a median of 19.90%. Ranked 13,243rd in the whole database. - **179.5 watts per square metre** - Bottom 5% of the PERC 350-400 W segment, against a median of 199.0. Ranked 13,219th in the whole database. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 350 W - **Efficiency:** 17.92 % - **Voltage at Pmax (Vmp):** 32.26 V - **Current at Pmax (Imp):** 10.94 A - **Open-circuit voltage (Voc):** 37.96 V - **Short-circuit current (Isc):** 11.60 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:** 179.5 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:** 287 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13243 of 14005 | | Power density | 13219 of 14005 | | Temperature coefficient | 10419 of 14005 | | Weight | 12365 of 14005 | | Warranty | 9798 of 14005 | ## Notable figures - Efficiency of 17.9% is 1.5pp below the \*\*PERC 0-400W\*\* median (19.4%) - Power density of 179.5 W/m² is 14.9 W/m² below \*\*PERC 0-400W\*\* median (194.4 W/m²) - needs more roof space - At -0.35%/°C, hot weather performance is typical for \*\*PERC 0-400W\*\* panels - In the top 95% for efficiency among all PERC panels ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/SPV-RYGB-088d0b83a608.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, +5.4 pp | | [PolyCrown Solar Tech NS-300MH-72](https://comparepv.com/panel/polycrown-solar-tech-ns-300mh-72) | 300 W | Cooler, lighter, +5.4 pp | | [JA Solar NS-330MH-80](https://comparepv.com/panel/ja-solar-ns-330mh-80) | 330 W | Cooler, lighter, +5.2 pp | | [PolyCrown Solar Tech NS-330MH-80](https://comparepv.com/panel/polycrown-solar-tech-ns-330mh-80) | 330 W | Cooler, lighter, +5.2 pp | | [Gamko New Energy GKA182M300W](https://comparepv.com/panel/gamko-new-energy-gka182m300w) | 300 W | -50 W, +5.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M320W](https://comparepv.com/panel/gamko-new-energy-gka210m320w) | 320 W | Lighter, +5.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M340W](https://comparepv.com/panel/gamko-new-energy-gka210m340w) | 340 W | Lighter, +5.1 pp, +5 yr warranty | | [Gamko New Energy GKA210M360W](https://comparepv.com/panel/gamko-new-energy-gka210m360w) | 360 W | Lighter, +5.1 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, +5.1 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 | +50 W, +5.1 pp, +5 yr warranty | | [SpolarPV SP310RHM6-54L](https://comparepv.com/panel/spolarpv-sp310rhm6-54l) | 310 W | -40 W, -2.1 pp | | [SpolarPV SP370GHM6-54L](https://comparepv.com/panel/spolarpv-sp370ghm6-54l) | 370 W | +20 W, +1.0 pp | | [SpolarPV SP380GHM6-54L](https://comparepv.com/panel/spolarpv-sp380ghm6-54l) | 380 W | +30 W, +1.5 pp | | [SpolarPV SPV420-TM10-108](https://comparepv.com/panel/spolarpv-spv420-tm10-108) | 420 W | +70 W, +3.6 pp, +5 yr warranty | | [SpolarPV SPV425-TM10-108](https://comparepv.com/panel/spolarpv-spv425-tm10-108) | 425 W | +75 W, +3.9 pp, +5 yr warranty | | [SpolarPV SPV425-TM10-108BD](https://comparepv.com/panel/spolarpv-spv425-tm10-108bd) | 425 W | +75 W, +3.8 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +160 W, cooler, +7.1 pp | --- Source: https://comparepv.com/panel/spolarpv-sp350yhm6-54l Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.