--- title: "Ulica Solar UL-405M-108HV 405W Solar Panel - Specs & Review | ComparePV" description: "Ulica Solar UL-405M-108HV 405W solar panel. Specs: 20.74% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ulica-solar-ul-405m-108hv" updated: 2026-09-11 --- # Ulica Solar UL-405M-108HV Middle of its segment, weak in heat 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Ulica Solar - **Model:** UL-405M-108HV - **Series:** MONO HALF-CUT MODULE - **Rated power:** 405 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 405 W | 435 W | Weak - bottom 2% | | | Module efficiency | 20.74% | 22.00% | Weak - bottom 3% | 10,645 | | Power density | 207.4 | 220.2 | Weak - bottom 3% | 10,626 | | Temperature coefficient | -0.360 | -0.290 | Weak - bottom 1% | 12,345 | | Weight (kg) | 21.8 kg | 22.0 kg | Typical | | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 7% | 9,798 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 20.74% | 22.00% | Weak - bottom 3% | 10,645 | | Power density | 207.4 | 220.2 | Weak - bottom 3% | 10,626 | | Temperature coefficient | -0.360 | -0.290 | Weak - bottom 1% | 12,345 | | Weight per kWp | 53.8 | 51.4 | Typical | 7,890 | | Performance warranty | 25 yrs | 30 yrs | Weak - bottom 7% | 9,798 | ### Watch out for - **-0.360 %/°C temperature coefficient** - Bottom 1% of the TOPCon 400-450 W segment, against a median of -0.290. Ranked 12,345th in the whole database. - **20.74% module efficiency** - Bottom 3% of the TOPCon 400-450 W segment, against a median of 22.00%. Ranked 10,645th in the whole database. - **207.4 watts per square metre** - Bottom 3% of the TOPCon 400-450 W segment, against a median of 220.2. Ranked 10,626th in the whole database. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Hot climates, tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 405 W - **Efficiency:** 20.74 % - **Voltage at Pmax (Vmp):** 31.30 V - **Current at Pmax (Imp):** 12.94 A - **Open-circuit voltage (Voc):** 37.30 V - **Short-circuit current (Isc):** 13.69 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.360 %/degC - **Temperature coefficient of Voc:** -0.290 %/degC - **Temperature coefficient of Isc:** 0.049 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 108 ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.8 kg - **Area:** 1.95 m2 - **Power density:** 207.4 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:** 332 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 10645 of 14005 | | Power density | 10626 of 14005 | | Temperature coefficient | 12345 of 14005 | | Weight | 7890 of 14005 | | Warranty | 9798 of 14005 | ## About this series The Ulica Solar MONO HALF-CUT MODULE series is an advanced solution that redefines efficiency standards in photovoltaic installations thanks to the use of half-cut cells. This innovative architecture allows for a significant reduction in energy losses resulting from internal resistance, which directly translates into higher power yields even during intense heating of the modules. A key benefit for the user is **exceptional resistance to partial shading**, as dividing the panel into two independent sections ensures that shade falling on the lower part does not block the operation of the entire unit. PERC technology and the use of multi-busbars (MBB) guarantee **excellent efficiency in low-light conditions**, making these panels an ideal choice for Polish weather conditions, including cloudy and rainy days. This series solves the problems of homeowners with complex roof geometries and investors looking for solutions with **above-average mechanical durability**, resistant to extreme snow loads or strong winds. They are distinguished from the competition by rigorous Anti-PID protection and certified resistance to salt and ammonia corrosion. By choosing these modules, you invest in **maximum energy yield per square meter** and system stability for decades, ensuring a quick return on investment in both the residential and industrial sectors. This technology was created for those who prioritize **reliability in difficult environmental conditions**. ## Notable figures - Module efficiency of 20.7% is 1.3pp below average for \*\*TOPCon 400-450W\*\* panels (median: 22.0%) - 207.4 W/m² power density is 12.8 W/m² below \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - requires larger installation area - Temperature coefficient of -0.36%/°C is 0.07pp worse than \*\*TOPCon 400-450W\*\* median (-0.29%/°C) - higher losses in summer heat - Ranked #10645 out of 14005 panels for efficiency in the database ## Questions ### What is the maximum power output of the Ulica Solar MONO HALF-CUT MODULE series? Panels in this series reach up to 405 Wp maximum power. This is achieved through half-cut TOPCon cells, which reduce resistive losses and increase energy yield compared to conventional full-cell modules of similar dimensions. ### Is the Ulica Solar MONO HALF-CUT MODULE series still available for purchase? No, production of this series has ended and the model has been discontinued from the manufacturer's current lineup. Panels may still be found through distributors as remaining stock, but buyers should check the manufacturing date and confirm warranty service availability before choosing this option over a currently produced model. ### What warranty applies to the Ulica Solar MONO HALF-CUT MODULE panels? The manufacturer provides a 12-year product warranty covering material and workmanship defects, along with a 25-year power output warranty. Since the series has been discontinued, processing warranty claims may become harder over time, so it's advisable to confirm after-sales support terms with the seller before purchasing. ### How do half-cut cells in this series differ from standard full cells? Half-cut cells split the panel into two electrically independent sections, so shading on part of one half doesn't disable the entire module but only reduces output in that section. Smaller cells also generate lower current losses and heat buildup, resulting in higher energy yield, particularly under partial shading from chimneys or antennas. ### Are Ulica Solar MONO HALF-CUT MODULE panels suitable for roofs with complex geometry? Yes, the half-cut cell design handles partial shading well, making these panels a good fit for roofs with dormers, chimneys, or irregular pitch angles where shading is common. A reinforced frame also provides mechanical resistance to snow and wind loads, making them a versatile choice for more challenging roof structures. ### Is Ulica Solar a Tier 1 manufacturer, and does that matter when choosing panels? No, Ulica Solar, a China-based manufacturer, is not listed as a Tier 1 producer under BloombergNEF's classification. This doesn't necessarily indicate lower technical quality, but it signals lower financial stability and bankability in the eyes of lenders, which is worth considering for commercial projects financed through bank loans. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Ulica-Mono-182mm-10BB-HC-400M-108-Full-Black-20228-d791265a0ec7.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-455-MAH54Db](https://comparepv.com/panel/aiko-aiko-455-mah54db) | 455 W | +50 W, cooler, +2.6 pp | | [Longi Solar LR5-54HTH-455M](https://comparepv.com/panel/longi-lr5-54hth-455m) | 455 W | +50 W, cooler, +2.6 pp | | [Yingli YL455CF54 e/2](https://comparepv.com/panel/yingli-yl455cf54-e-2) | 455 W | +50 W, cooler, +2.6 pp | | [Einnova Solarline ESM-455T](https://comparepv.com/panel/einnova-solarline-esm-455t) | 455 W | +50 W, +2.6 pp, +5 yr warranty | | [SunEvo Solar SE5-54HBC-455W](https://comparepv.com/panel/sunevo-solar-se5-54hbc-455w) | 455 W | +50 W, cooler, +2.6 pp | | [Just Solar JST-EDMH-(445-465)W-TD (455W class)](https://comparepv.com/panel/just-solar-jst-edmh-445-465-w-td-455w-class) | 455 W | +50 W, cooler, +2.6 pp | | [Luxor Solar LX-455M/182R-96+ GG](https://comparepv.com/panel/luxor-lx-455m-182r-96-gg) | 455 W | +50 W, cooler, +2.6 pp | | [Ulica Solar UL-395M-108HV](https://comparepv.com/panel/ulica-solar-ul-395m-108hv) | 395 W | -10 W, -0.5 pp | | [Ulica Solar UL-400M-108HV](https://comparepv.com/panel/ulica-solar-ul-400m-108hv) | 400 W | -0.3 pp | | [Ulica Solar UL-430M-108ADGN](https://comparepv.com/panel/ulica-solar-ul-430m-108adgn) | 430 W | Cooler, +1.3 pp, +5 yr warranty | | [Ulica Solar UL-435M-108ADGN](https://comparepv.com/panel/ulica-solar-ul-435m-108adgn) | 435 W | Cooler, +1.5 pp, +5 yr warranty | | [Ulica Solar UL-440M-108ADGN](https://comparepv.com/panel/ulica-solar-ul-440m-108adgn) | 440 W | Cooler, +1.8 pp, +5 yr warranty | | [Ulica Solar UL-445M-108ADGN](https://comparepv.com/panel/ulica-solar-ul-445m-108adgn) | 445 W | Cooler, +2.1 pp, +5 yr warranty | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +105 W, cooler, +4.3 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +90 W, cooler, +4.1 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +100 W, cooler, +4.0 pp | --- Source: https://comparepv.com/panel/ulica-solar-ul-405m-108hv Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.