--- title: "Q-SUN Solar QN-445HD-1 445W Solar Panel - Specs & Review | ComparePV" description: "Q-SUN Solar QN-445HD-1 445W solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/q-sun-solar-qn-445hd-1" updated: 2026-09-11 --- # Q-SUN Solar QN-445HD-1 Efficiency leader, heavy for its output 321 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** Q-SUN Solar - **Model:** QN-445HD-1 - **Series:** Qrystal N8 - **Rated power:** 445 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 400-450 W (321 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 430 W | Strong - top 7% | | | Module efficiency | 22.30% | 21.91% | Strong - top 18% | 5,100 | | Power density | 222.7 | 218.3 | Strong - top 25% | 5,302 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 25.0 kg | 22.0 kg | Weak - bottom 18% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.30% | 21.91% | Strong - top 18% | 5,100 | | Power density | 222.7 | 218.3 | Strong - top 25% | 5,302 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 56.2 | 51.2 | Weak - bottom 18% | 10,457 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **22.30% module efficiency** - Top 18% of the N-type 400-450 W segment, against a median of 21.91%. - **222.7 watts per square metre** - Top 25% of the N-type 400-450 W segment, against a median of 218.3. ### Watch out for - **56.2 kg per kWp** - Bottom 18% of the N-type 400-450 W segment, against a median of 51.2. - **Best for:** Residential and commercial. - **Not ideal for:** Weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 33.81 V - **Current at Pmax (Imp):** 13.16 A - **Open-circuit voltage (Voc):** 40.17 V - **Short-circuit current (Isc):** 13.86 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 25.0 kg - **Area:** 2.00 m2 - **Power density:** 222.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 389 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5100 of 14005 | | Power density | 5302 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 10457 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon cells** - N-type TOPCon technology delivers lower LID/LeTID degradation and a better temperature coefficient than older PERC cells, resulting in more stable energy output on hot days and less power loss during the early years of operation. - **Bifacial design** - The dual-glass bifacial construction captures additional albedo energy from the rear side of the module - depending on the mounting surface (light-colored roof, membrane, ground mount), this can boost total yield by a meaningful margin compared to an equivalent monofacial module. - **30-year power warranty** - The manufacturer offers a uniform, linear 30-year power warranty (min=max), matching the best offers on the market and exceeding the standard 25-year power warranties offered by most Tier-1 competitors. - **High efficiency up to 22.5%** - Efficiency reaching 22.5% clearly outperforms thin-film modules such as First Solar Series 6 Plus (~19% at the same max power of 480 W), meaning less roof or ground area is needed to reach the same installed capacity. - **Broad 430-480 Wp power range** - 10 power variants spanning 430-480 Wp provide flexibility to match modules to specific projects - from residential to commercial installations - without switching product series. ## Cons - **No BNEF Tier 1 status** - Q-SUN Solar does not appear on the BNEF Tier 1 bankable module manufacturer list, which may complicate bank financing for larger commercial projects where lenders often require Tier-1 modules. - **Efficiency below segment leader** - Peak efficiency of 22.5% is about 1.5 pp lower than the competing Gamko New Energy GKA96N-PRO series (24.02% at the same max power of 480 W), placing Qrystal N8 mid-pack rather than at the top of the N-type segment. - **Inconsistent product warranty** - The lower bound of the product warranty is just 15 years (depending on variant), 10 years short of the 25-year standard offered by many Tier-1 competitors - buyers should verify which specific variant carries the shorter coverage. - **Limited manufacturer track record** - Q-SUN Solar was founded in 2014, and the Qrystal N8 series itself launched in 2023 - a relatively short market history compared to established Tier-1 manufacturers means less long-term field reliability data is available. ## About this series The Q-SUN Solar Qrystal N8 series is designed to maximize energy yield in situations where every square meter of roof or land matters. The modules utilize **N-type cells** and **TOPCon technology**, ensuring stable performance in varying weather conditions and improved resistance to typical degradation over time. This translates to more predictable energy production and a more cost-effective installation over a longer period. A key feature of the series is the **bifacial design** in certain variants - allowing for the recovery of additional energy from reflected light, which is particularly effective on bright roof surfaces, membranes, and ground-mounted installations. The Qrystal N8 is a good choice for residential, commercial, and industrial installations where you need high power density and reliable performance in cold, hot, and partially shaded conditions. Compared to the competition, the series offers a significant advantage due to its combination of **long power warranty** and technology that realistically limits performance degradation over time. ## Notable figures - At 22.3% efficiency, this panel is on par with typical \*\*N-type 400-450W\*\* modules - Power density of 222.7 W/m² packs 4.4 W/m² more into the same footprint vs \*\*N-type 400-450W\*\* median (218.3 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*N-type 400-450W\*\* panels - Weight of 25.0 kg is 3.0 kg above \*\*N-type 400-450W\*\* median (22.0 kg) - verify structural support - #5100 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What warranty comes with the Q-SUN Solar Qrystal N8 solar panels? The Qrystal N8 series includes a 25-year product warranty covering material and manufacturing defects, plus a 30-year linear power output warranty — among the longest available on the market. The extended power guarantee allows for more accurate LCOE projections and gives homeowners and commercial investors greater confidence in the system's long-term financial performance. ### What is TOPCon technology used in the Qrystal N8 and is it worth the premium? TOPCon (Tunnel Oxide Passivated Contact) is an advanced N-type silicon cell technology used across the Qrystal N8 lineup. Compared to conventional PERC cells, TOPCon achieves higher conversion efficiency and lower long-term degradation rates. In real-world terms, this means more energy harvested from the same roof area and a more stable output curve over the panel's lifespan — directly improving the return on investment. ### Are the bifacial Qrystal N8 variants worth it on a pitched roof with dark tiles? Bifacial Qrystal N8 modules deliver the greatest benefit where the rear side can capture reflected irradiance — ground-mount systems with a light-colored albedo surface, flat roofs with white membranes, or bright gravel substrates. On a standard pitched roof with dark tiles, the bifacial gain is marginal and rarely justifies the added cost. Ground-mount or flat-roof installations with a reflective surface are where this variant truly pays off. ### What is the maximum power output of the Qrystal N8 and how many panels do I need for a home system? Qrystal N8 modules are rated up to 480 Wp, placing them in the high power-density segment. For a typical 10 kWp residential system, you would need roughly 21 panels from this series, compared to 26 or more with older 350–380 Wp modules. Fewer panels also means reduced BoS costs — less racking, wiring, and labor time on the roof. ### How do the Qrystal N8 panels perform in high temperatures and on overcast days? The N-type TOPCon cells in the Qrystal N8 have a more favorable temperature coefficient than standard PERC cells, so they lose less power during hot summer days. They also respond well to diffuse irradiance, generating relatively more energy under cloudy or hazy conditions than older cell technologies. Both factors contribute to a higher annual energy yield over the system's lifetime. ### Is Q-SUN Solar a Tier 1 manufacturer, and does that affect my decision to buy the Qrystal N8? Q-SUN Solar is not currently listed as a Tier 1 manufacturer by financial agencies such as Bloomberg NEF. It is important to understand that Tier 1 is a bankability rating based on a manufacturer's financial standing, not a technical quality benchmark. When evaluating the Qrystal N8, focus on the module specifications, the 25-year product and 30-year power warranties, and the availability of local after-sales service to ensure the warranty can be enforced if needed. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/n-type-qrystal-430-450wblack-thru-mono-crystalline-material-1d34ff3e5312.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, lighter, +2.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, lighter, +2.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, lighter, +2.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, lighter, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, lighter, +2.0 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, lighter, +2.0 pp | | [Q-SUN Solar QN-430HT-5](https://comparepv.com/panel/q-sun-solar-qn-430ht-5) | 430 W | -15 W, -0.8 pp | | [Q-SUN Solar QN-435HT-5](https://comparepv.com/panel/q-sun-solar-qn-435ht-5) | 435 W | -10 W, -0.5 pp | | [Q-SUN Solar QN-440HT-5](https://comparepv.com/panel/q-sun-solar-qn-440ht-5) | 440 W | -0.3 pp | | [Q-SUN Solar QN-450HT-5](https://comparepv.com/panel/q-sun-solar-qn-450ht-5) | 450 W | Very close match | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, lighter, +2.2 pp | --- Source: https://comparepv.com/panel/q-sun-solar-qn-445hd-1 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.