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Model 335 | Polycrystalline | 144 Half-Cell | Monofacial | 1500V System Voltage
The Jiangxi Risun Risun 335 335W polycrystalline solar panel delivers reliable energy production for homes and businesses. This high quality module uses 144 polycrystalline cells to provide a rated maximum power of 335 Wp with solid efficiency. With a module efficiency of 16.9%, it helps squeeze more generation from limited rooftop or ground space. The panel is engineered around a robust anodized aluminium frame and tempered glass front for long term durability. It operates safely up to 1500 V system voltage, making it suitable for modern high string count arrays. A 10 year product warranty and 25 year power warranty support long term performance expectations. Low annual degradation helps maintain at least 80% of the initial output after 25 years of operation. The Risun 335 panel offers a dependable mix of output, build quality, and value for grid tied and off grid projects. Its 22 kg weight and 2000x992x40 mm dimensions allow straightforward handling and mounting on standard structures. This polycrystalline solar panel is produced by Jiangxi Risun Solar Energy Co., Ltd in China for global installations. The power range of the series spans 325 to 345 Wp with panel efficiencies between 16.4% and 17.4%. Consistent electrical characteristics, including 38.61 V Vmpp and 8.68 A Impp, support efficient inverter matching. The panel is designed to run from -40°C to 85°C, which suits diverse climates and weather conditions. A carefully selected junction box, connectors, and 4 mm² cable help ensure safe and stable energy delivery.
Balanced 335 Wp power class: The 335 Wp rating suits residential and commercial string designs effectively. It offers strong production while keeping module count manageable on each array.
Efficient use of roof space: Module efficiency up to 16.9% helps maximise energy from limited surfaces. Higher efficiency reduces required area for a given system size.
Long term performance assurance: The 10 year product warranty covers manufacturing quality over time. A 25 year power warranty with 80% minimum output supports bankable forecasts.
Durable construction: Tempered 3.2 mm glass and anodized aluminium frame improve mechanical strength. The IP67 junction box offers dependable protection against dust and water ingress.
Wide operating temperature range: The panel operates from -40°C to 85°C while maintaining safe performance. Stable temperature coefficients support predictable output across seasons.
Flexible system integration: Support for up to 1500 V system voltage enables longer series strings. This can reduce installation balance of system costs on larger projects.
This polycrystalline solar panel converts sunlight into usable direct current electricity through its silicon cells. A total of 144 cells are wired together to create a balanced voltage and current output. When photons strike the polycrystalline cells, electrons are released and driven by the built in electric field. The resulting current flows through the internal busbars and out through the junction box cables. At standard test conditions the module delivers 335 Wp, with Vmpp of 38.61 V and Impp of 8.68 A. This output can be connected to a compatible solar inverter or charge controller in a larger system. The panel performs across a wide range of temperatures, guided by its defined temperature coefficients. Over time the power output reduces slowly, with total degradation capped at 20% after 25 years. Proper orientation, tilt, and string design help extract the best performance from each module.
Photovoltaic energy conversion: Polycrystalline silicon cells absorb sunlight and generate charge carriers. An internal electric field directs these charges to create a steady DC current. The panel efficiency of 16.9% reflects how much sunlight becomes usable electrical power. Consistent manufacturing helps keep performance stable from cell to cell across the module.
Module voltage and current management: The 144 cell layout is optimised to deliver about 38.61 V at maximum power. At that point the current reaches around 8.68 A to produce the rated 335 Wp. Voc of 45.98 V and Isc of 9.12 A define the open circuit and short circuit extremes. These electrical values are important when sizing inverters, fuses, and cable runs.
Thermal and environmental behavior: The module operates safely from -40°C up to 85°C ambient conditions. Temperature coefficients describe how power, voltage, and current shift as cells heat. Pmax decreases by about -0.416% per degree Celsius above the test point. The NOCT value of 45±2°C indicates expected cell temperature under real field conditions.
| Module Type | Polycrystalline framed solar panel |
| Model Number | Risun 335 |
| Nominal Power Range | 325 ~ 345 Wp series range |
| Maximum Power (Pmax) | 335 Wp at STC |
| Power Tolerance | 0 ~ +1.5 % positive tolerance |
| Panel Efficiency | 16.9% module efficiency (16.4 ~ 17.4% series) |
| Voltage at Maximum Power (Vmpp) | 38.61 V |
| Current at Maximum Power (Impp) | 8.68 A |
| Open Circuit Voltage (Voc) | 45.98 V |
| Short Circuit Current (Isc) | 9.12 A |
| Maximum System Voltage | 1500 V DC |
| Series Fuse Rating | 15 A maximum series fuse |
| Total Degradation Rate | 0.8% annual, 80% power after 25 years |
| Nominal Operating Cell Temperature (NOCT) | 45±2 °C nominal cell temperature |
| Operating Temperature Range | -40 °C to +85 °C ambient range |
| Temperature Coefficient of Pmax | -0.416 %/°C |
| Temperature Coefficient of Voc | -0.309 %/°C |
| Temperature Coefficient of Isc | +0.049 %/°C |
| Panel Dimensions (H x W x D) | 2000 x 992 x 40 mm |
| Weight | 22 kg per module |
| Cell Count and Type | 144 polycrystalline cells |
| Front Glass | 3.2 mm tempered glass front |
| Frame Material | Anodized aluminium frame |
| Junction Box Protection | IP67 rated junction box |
| Cable Cross Section | 4 mm² solar cable |
| Seller and Brand Origin | Jiangxi Risun Solar Energy Co., Ltd., China |
Certifications: Designed to meet mainstream IEC safety and performance standards for crystalline PV modules.
Inverter Compatibility: Compatible with most modern string and central inverters rated for 1500 V DC systems.
Environmental: IP67 junction box and durable glass protect against dust, moisture, and harsh outdoor conditions.
Warranty: 10 year product warranty and 25 year power warranty with at least 80% rated output at year 25.
● Available | Contact us for lead time and pricing
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