--- title: "Q-SUN Solar QN-720HJT-01 720W Solar Panel - Specs & Review | ComparePV" description: "Q-SUN Solar QN-720HJT-01 720W solar panel. Specs: 23.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/q-sun-solar-qn-720hjt-01" updated: 2026-09-11 --- # Q-SUN Solar QN-720HJT-01 Solid all-round for its segment 222 panels in the segment HJT 700-750 W ## Identity - **Manufacturer:** Q-SUN Solar - **Model:** QN-720HJT-01 - **Series:** Qrystal Max N12 - **Rated power:** 720 W - **Cell technology:** HJT - **Bifacial:** yes ## How it compares Compared against segment HJT 700-750 W (222 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 720 W | 715 W | Typical | | | Module efficiency | 23.30% | 23.02% | Typical | 1,017 | | Power density | 231.8 | 230.2 | Typical | 1,347 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight (kg) | 37.9 kg | 38.3 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.30% | 23.02% | Typical | 1,017 | | Power density | 231.8 | 230.2 | Typical | 1,347 | | Temperature coefficient | -0.240 | -0.240 | Typical | 13 | | Weight per kWp | 52.6 | 53.6 | Typical | 6,266 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | - **Best for:** Commercial and utility-scale. ## Specification ### Electrical - **Rated power (Pmax):** 720 W - **Efficiency:** 23.30 % - **Voltage at Pmax (Vmp):** 42.14 V - **Current at Pmax (Imp):** 17.10 A - **Open-circuit voltage (Voc):** 50.17 V - **Short-circuit current (Isc):** 18.17 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.240 %/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:** HJT - **Cell count:** 132 - **Bifacial:** yes ### Physical - **Length:** 2384 mm - **Width:** 1303 mm - **Thickness:** 35 mm - **Weight:** 37.9 kg - **Area:** 3.11 m2 - **Power density:** 231.8 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 90.3 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.36 % - **Output after 30 years:** 638 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1017 of 14005 | | Power density | 1347 of 14005 | | Temperature coefficient | 13 of 14005 | | Weight | 6266 of 14005 | | Warranty | 21 of 14005 | ## Pros - **High-efficiency N-type HJT/TOPCon cells** - Efficiency of 22.2-23.5% places the series among the top-tier premium segment, matching direct peers such as Huasun Himalaya and Phono Solar Monocrystalline132 (both 23.5%). The hybrid N-type cell technology reduces LID/LeTID degradation compared to older PERC modules. - **Bifacial double-glass construction** - Bifacial cells capture reflected albedo light, adding real-world yield on bright roofs, carports, and ground-mount installations. The 2.0 mm double-glass design improves mechanical durability and reduces the risk of microcracks and PID degradation. - **30-year power warranty (90.3%)** - The manufacturer guarantees 91.8% power output at 25 years and 90.3% at 30 years, exceeding the typical 25-year/84.8% linear standard offered by many PERC-based manufacturers. The 15-year product warranty is in line with market standard for premium bifacial modules. - **Low temperature coefficient of -0.24%/°C** - This value outperforms the typical -0.35% to -0.40%/°C found in PERC modules, translating into lower power losses at high operating temperatures - important for commercial rooftops and ground-mount PV farms during summer months. ## Cons - **No BNEF Tier 1 status** - Q-SUN Solar does not appear on the Bloomberg New Energy Finance Tier 1 manufacturer list, unlike technologically comparable series such as Huasun Himalaya V-ocean. This may limit access to bank financing for large-scale PV farm projects that require bankable components. - **Shorter manufacturer track record** - The company was founded in 2014, meaning a less established market presence and shorter track record compared to more experienced Tier-1 players in the HJT/TOPCon segment - a relevant factor when assessing long-term delivery risk on the 30-year power warranty. ## About this series The Q-SUN Solar Qrystal Max N12 series is designed for installations where maximizing energy yield from a given area and stable performance in challenging conditions are key. These modules are based on **N-type cells** in TOPCon technology, which results in high efficiency and better performance over time. Thanks to its **bifacial** design, the panel can also utilize reflected light from the ground - a real advantage on bright roofs, ground-mounted structures, and carport installations. A key feature of the Qrystal Max N12 is the **double glass**, which increases resistance to loads and environmental factors, as well as reduces the risk of microcracks. The manufacturer also highlights the **enhanced PID resistance** and reduction in losses associated with hot spots, which helps maintain higher production throughout the module's lifespan. This is a good choice for PV farms, large commercial roofs, and projects that require **long-term, predictable operation** and low operating costs. ## Notable figures - Efficiency of 23.3% matches the \*\*HJT 700-750W\*\* median - Power density of 231.8 W/m² matches the \*\*HJT 700-750W\*\* median - Temperature coefficient of -0.24%/°C matches the \*\*HJT 700-750W\*\* median - Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof - In the top 7% for efficiency among all HJT panels ## Questions ### What warranty does the Q-SUN Solar Qrystal Max N12 series carry? Q-SUN Solar provides a 15-year product warranty and a 30-year linear power output warranty for the Qrystal Max N12 series. After 30 years of operation, the module is guaranteed to retain at least 87.4% of its rated output. For commercial and utility-scale PV installations, this translates into predictable energy revenue and reduced risk of unexpected performance losses throughout the full service life. ### What makes the TOPCon technology in the Qrystal Max N12 stand out? N-type TOPCon cells feature a lower temperature coefficient (approximately -0.35%/°C) and slower long-term degradation compared to PERC technology. An ultra-thin tunnel oxide layer on the rear of each cell reduces carrier recombination, boosting module efficiency. In practice, this means higher energy output during hot summer months and better-preserved parameters throughout the module's entire 30-year service life. ### Are the Q-SUN Solar Qrystal Max N12 panels suitable for ground-mount farms, carports, and flat roofs? Yes. The bifacial design of the Qrystal Max N12 allows modules to harvest light reflected from the ground surface, delivering measurable additional energy yield — especially on ground-mounted farms and carports with light-colored surfaces. Flat roofs with white membranes or gravel also benefit from the bifacial gain. The dual-glass construction provides the mechanical strength required for large-scale racking systems. ### What efficiency do the Q-SUN Solar Qrystal Max N12 730 Wp modules achieve? The Qrystal Max N12 series delivers module efficiency in the range of 22.5–23.5%, placing it among the leading TOPCon products currently available on the market. With a rated output of 730 Wp and approximate dimensions of 2,384x1,303 mm, these panels achieve very high power density per square meter — a key advantage wherever roof or land area is limited or expensive. ### Is Q-SUN Solar a Tier 1 manufacturer, and does that affect project financing? Q-SUN Solar is not currently listed among the Tier 1 manufacturers published by BloombergNEF. This may complicate project financing with certain lenders for large-scale PV projects. Before purchasing for a financed installation, it is advisable to consult your financing institution to confirm whether they accept products from manufacturers outside the Tier 1 list and to review applicable performance insurance requirements. ### How does the dual-glass construction of the Qrystal Max N12 extend installation lifespan? Using dual glass instead of a conventional backsheet eliminates the primary cause of delamination and moisture ingress that shortens the service life of traditional modules. The glass-glass structure improves resistance to wind and snow loads, reduces the risk of micro-cracks in the cells, and handles humidity more effectively. The manufacturer also highlights enhanced PID resistance, supporting stable energy output across the full 30-year warranty horizon. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/hjt-710-730w-h-type-qrystal-mono-crystal-0-086-2d7c65d540e4.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | -40 W, lighter, +1.9 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | -45 W, lighter, +1.7 pp | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | Hotter, lighter, +1.7 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | -25 W, lighter, +1.6 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | -50 W, lighter, +1.5 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | -50 W, lighter, +1.5 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | -50 W, lighter, +1.5 pp | | [Q-SUN Solar QN-690HT-01](https://comparepv.com/panel/q-sun-solar-qn-690ht-01) | 690 W | -30 W, hotter, -1.1 pp | | [Q-SUN Solar QN-695HT-01](https://comparepv.com/panel/q-sun-solar-qn-695ht-01) | 695 W | -25 W, hotter, -0.9 pp | | [Q-SUN Solar QN-700HT-01](https://comparepv.com/panel/q-sun-solar-qn-700ht-01) | 700 W | -20 W, hotter, -0.8 pp | | [Q-SUN Solar QN-705HT-01](https://comparepv.com/panel/q-sun-solar-qn-705ht-01) | 705 W | -15 W, hotter, -0.6 pp | | [Q-SUN Solar QN-710HJT-01](https://comparepv.com/panel/q-sun-solar-qn-710hjt-01) | 710 W | -10 W, -0.3 pp | | [Q-SUN Solar QN-715HJT-01](https://comparepv.com/panel/q-sun-solar-qn-715hjt-01) | 715 W | Very close match | | [Q-SUN Solar QN-725HJT-01](https://comparepv.com/panel/q-sun-solar-qn-725hjt-01) | 725 W | Very close match | | [Q-SUN Solar QN-730HJT-01](https://comparepv.com/panel/q-sun-solar-qn-730hjt-01) | 730 W | +10 W | | [AIKO AIKO-A805-GRH78Dw](https://comparepv.com/panel/aiko-aiko-a805-grh78dw) | 805 W | +85 W, hotter, +1.8 pp | --- Source: https://comparepv.com/panel/q-sun-solar-qn-720hjt-01 Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.