--- title: "Ulica Solar UL-505M-120BDGN vs Ulica Solar UL-705M-132DGN - Solar Panel Comparison | ComparePV" description: "Compare Ulica Solar UL-505M-120BDGN vs Ulica Solar UL-705M-132DGN side by side: what actually differs, output when it is hot, thirty-year production, and the full specification." source: "https://comparepv.com/compare/ulica-solar-ul-505m-120bdgn/ulica-solar-ul-705m-132dgn" updated: 2026-09-11 --- # Ulica Solar UL-505M-120BDGN vs Ulica Solar UL-705M-132DGN 9 differences, and they point both ways The largest is rated power: 200 W more power. 10 of 19 comparable parameters are identical. ## The two panels | Attribute | A | B | | --- | --- | --- | | Panel | [Ulica Solar UL-505M-120BDGN](https://comparepv.com/panel/ulica-solar-ul-505m-120bdgn) | [Ulica Solar UL-705M-132DGN](https://comparepv.com/panel/ulica-solar-ul-705m-132dgn) | | Manufacturer | Ulica Solar | Ulica Solar | | Power | 505 Wp | 705 Wp | | Efficiency | 22.81 % | 22.70 % | | Technology | TOPCon | TOPCon | ## Where they differ Ranked by how much the difference matters, not by datasheet order. | Parameter | 505M-120BDGN | 705M-132DGN | Difference | | --- | --- | --- | --- | | Rated power | 505 Wp | 705 Wp | +200 W for 705M-132DGN | | Weight | 26.5 kg | 37.4 kg | -10.9 kg for 505M-120BDGN | | Open-circuit voltage | 43.94 V | 48.72 V | 4.78 V apart | | Short-circuit current | 14.54 A | 18.36 A | 3.82 A apart | | Module area | 2.214 m² | 3.106 m² | 0.893 m² apart | | Current at max power | 13.58 A | 17.33 A | 3.75 A apart | | Cell count | 120 | 132 | 12 cells apart | | Voltage at max power | 37.18 V | 40.69 V | 3.51 V apart | | Dimensions | 1952x1134x30 mm | 2384x1303x33 mm | 1952x1134x30 mm vs 2384x1303x33 mm | ## Every compared parameter | Parameter | 505M-120BDGN | 705M-132DGN | | --- | --- | --- | | Rated power | 505 Wp | 705 Wp | | Module efficiency | 22.81 % | 22.70 % | | Power density | 228.1 Wp/m² | 227.0 Wp/m² | | Open-circuit voltage | 43.94 V | 48.72 V | | Voltage at max power | 37.18 V | 40.69 V | | Short-circuit current | 14.54 A | 18.36 A | | Current at max power | 13.58 A | 17.33 A | | Temperature coefficient | -0.290 %/°C | -0.290 %/°C | | Dimensions | 1952x1134x30 mm | 2384x1303x33 mm | | Module area | 2.214 m² | 3.106 m² | | Weight | 26.5 kg | 37.4 kg | | Weight per kWp | 52.5 kg/kWp | 53.0 kg/kWp | | Product warranty | 15 yrs | 15 yrs | | Performance warranty | 30 yrs | 30 yrs | | Annual degradation | 0.40 %/yr | 0.40 %/yr | | Cell technology | TOPCon | TOPCon | | Cell type | Monocrystalline | Monocrystalline | | Cell count | 120 | 132 | | Bifacial | Yes | Yes | ## Thirty-year yield Each panel's own declared degradation curve, at 1,200 kWh/kWp a year Same temp coeff. for both panels (-0.290 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other. - **Cumulative output, 505M-120BDGN:** 16,944 kWh - **Cumulative output, 705M-132DGN:** 23,654 kWh - **Gap:** 6,710 kWh ## Output when hot | Condition | Cell temperature | 505M-120BDGN | 705M-132DGN | Retained | | --- | --- | --- | --- | --- | | Standard test conditions | 25 °C | 505 W | 705 W | 100.0% of rated power | | Cool, bright day | 40 °C | 483 W | 674 W | 95.7% of rated power | | Typical summer roof | 55 °C | 461 W | 644 W | 91.3% of rated power | | Hot roof | 70 °C | 439 W | 613 W | 87.0% of rated power | ## Against the whole database | Measure | 505M-120BDGN | 705M-132DGN | Out of | Note | | --- | --- | --- | --- | --- | | Efficiency | #2,711 | #3,307 | 14,005 | 505M-120BDGN leads by 596 places | | Power density | #2,755 | #3,361 | 14,005 | 505M-120BDGN leads by 606 places | | Heat behaviour | #2,165 | #2,165 | 14,005 | Tied - the same position in the database | | Weight | #6,016 | #6,803 | 14,005 | 505M-120BDGN leads by 787 places | | Warranty | #21 | #21 | 14,005 | Tied - the same position in the database | | Overall | #6,015 | #738 | 14,005 | 705M-132DGN leads by 5,277 places | ## Questions ### Which panel is better: Ulica Solar UL-505M-120BDGN or Ulica Solar UL-705M-132DGN? According to our database: **Ulica Solar UL-505M-120BDGN** has higher module efficiency (**22.81%** vs **22.70%**). See the full spec comparison and 30-year energy simulation above for a complete picture. ### What is the efficiency of Ulica Solar UL-505M-120BDGN and Ulica Solar UL-705M-132DGN? **Ulica Solar UL-505M-120BDGN** has a module efficiency of **22.81%**, while **Ulica Solar UL-705M-132DGN** is **22.70%**. Higher efficiency means more electricity from the same roof area - useful when space is limited. ### What cell technology does Ulica Solar UL-505M-120BDGN use vs Ulica Solar UL-705M-132DGN? **Ulica Solar UL-505M-120BDGN** uses **TOPCon** cells; **Ulica Solar UL-705M-132DGN** uses **TOPCon**. Modern **n-type** technologies (**TOPCon**, **HJT**, BC) typically deliver higher efficiency and lower degradation compared to older **PERC** (p-type) cells. ### What is the warranty on Ulica Solar UL-505M-120BDGN and Ulica Solar UL-705M-132DGN? **Ulica Solar UL-505M-120BDGN** has a **30 years** power warranty; **Ulica Solar UL-705M-132DGN** has a **30 years** power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80**-87%**). Product (materials) warranties are usually shorter. ### Are Ulica Solar UL-505M-120BDGN and Ulica Solar UL-705M-132DGN bifacial panels? Both **Ulica Solar UL-505M-120BDGN** and **Ulica Solar UL-705M-132DGN** are bifacial - they capture reflected light from the ground, which can add 5**-15%** more annual energy on ground-mount or elevated rooftop installations with a light surface beneath. ## Related comparisons - [Ulica Solar UL-505M-120BDGN vs Ulica Solar UL-500M-120BDGN](https://comparepv.com/compare/ulica-solar-ul-505m-120bdgn/ulica-solar-ul-500m-120bdgn) - One difference: module efficiency - [Ulica Solar UL-505M-120BDGN vs Ulica Solar UL-495M-120BDGN](https://comparepv.com/compare/ulica-solar-ul-505m-120bdgn/ulica-solar-ul-495m-120bdgn) - 3 differences, the largest is module efficiency - [Ulica Solar UL-505M-120BDGN vs Ulica Solar UL-490M-120BDGN](https://comparepv.com/compare/ulica-solar-ul-505m-120bdgn/ulica-solar-ul-490m-120bdgn) - 3 differences, the largest is module efficiency - [Ulica Solar UL-705M-132DGN vs Ulica Solar UL-715M-132DGN](https://comparepv.com/compare/ulica-solar-ul-705m-132dgn/ulica-solar-ul-715m-132dgn) - 3 differences, the largest is module efficiency - [Ulica Solar UL-705M-132DGN vs Ulica Solar UL-710M-132DGN](https://comparepv.com/compare/ulica-solar-ul-705m-132dgn/ulica-solar-ul-710m-132dgn) - The same specification on paper - [Ulica Solar UL-705M-132DGN vs Ulica Solar UL-700M-132DGN](https://comparepv.com/compare/ulica-solar-ul-705m-132dgn/ulica-solar-ul-700m-132dgn) - The same specification on paper --- Source: https://comparepv.com/compare/ulica-solar-ul-505m-120bdgn/ulica-solar-ul-705m-132dgn Not in this file, on the page: the thirty-year yield curve year by year at a cell temperature you pick and a written summary generated on request.