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Model 405W | Monocrystalline Silicon | 108 Half-Cell Layout | Monofacial | 1500V System Voltage
The Sun Earth East Solar 405W monocrystalline solar panel is engineered for reliable high output in modern residential and commercial systems. With a rated maximum power of 405 watts and module efficiency up to 20.7 percent, this panel delivers strong performance even where roof space is limited. Its refined cell layout with 108 monocrystalline cells supports stable energy production across a wide power range from 400 to 415 watts. A robust 25 year and 30 year power warranty structure, combined with a low annual degradation rate of around 0.63 percent, helps secure predictable long term yields. The module is built around a durable anodized aluminium frame, 3.2 millimetre tempered glass, and IP68 junction box protection to withstand demanding outdoor environments. With a maximum system voltage of 1500 volts and a compact 1722 by 1134 millimetre footprint, the Sun Earth East Solar 405W panel integrates easily with modern inverters and mounting systems. Designed and manufactured in China by Ningbo Sun Earth East Solar Co., Ltd., it offers a dependable balance of performance, durability, and value for grid tied and off grid projects.
High power in a compact footprint: The 405 watt output and 20.7 percent efficiency allow more energy production per square metre, ideal for roofs with limited area.
Reliable long term performance: A 25 year power warranty at 83.3 percent and 30 year warranty at 81.0 percent support dependable lifetime yields with a controlled degradation profile.
Robust construction for harsh climates: Tempered glass, EVA encapsulation, and an anodized aluminium frame combine with an IP68 junction box for strong resistance to dust, moisture, and mechanical stress.
Wide operating temperature range: The panel operates between minus 40 and 85 degrees Celsius, with optimized temperature coefficients for Voc, Isc, and Pmax to protect performance in hot or cold weather.
Versatile system integration: A maximum system voltage of 1500 volts and 4 square millimetre cables support longer strings and efficient connection to a wide range of inverters and balance of system components.
Proven manufacturer: Produced by Ningbo Sun Earth East Solar Co., Ltd. in China, the module benefits from established manufacturing experience and quality focused processes.
This monocrystalline module converts sunlight into usable electrical energy through high efficiency photovoltaic cells. When sunlight hits the 108 monocrystalline cells, photons are absorbed and an electric field is created across each cell. Direct current then flows through the internal cell interconnections and busbars, before leaving the panel through the factory fitted cables and junction box. The rated maximum power of 405 watts is reached under standard test conditions with the module operating at its Vmpp and Impp values. In a complete system, the generated direct current is routed to an inverter, which converts it into alternating current suitable for household loads or grid export. The optimized voltage window and current characteristics help in building longer strings that match inverter inputs while keeping electrical losses under control. The durable mechanical design and wide temperature range maintain this energy conversion process reliably over decades of outdoor exposure.
Monocrystalline energy conversion: Each cell uses high purity monocrystalline silicon to create a consistent crystal structure that supports efficient electron flow. This structure improves conversion efficiency compared with older multicrystalline technologies and helps the panel reach up to 21.3 percent efficiency within the stated power range.
Optimized electrical operating point: Under standard conditions, the module delivers its rated 405 watts at around 31.2 volts and 12.97 amps. System designers use these Vmpp and Impp values to size strings and inverters so that energy harvest is maximized across typical daily and seasonal irradiance patterns.
Temperature and degradation management: Power output naturally changes with cell temperature, so the module uses controlled temperature coefficients to limit performance loss at higher temperatures. A low total degradation rate, supported by long warranty terms, ensures that the power curve declines gradually over time rather than dropping sharply during early years.
| Brand / Seller | Ningbo Sun Earth East Solar Co., Ltd. |
| Country of Origin | China |
| Module Type | Monocrystalline, monofacial photovoltaic module |
| Power Range | 400 Wp to 415 Wp |
| Nominal Maximum Power (Pmax) | 405 Wp at STC |
| Voltage at Maximum Power (Vmpp) | 31.2 V (405 W version) |
| Current at Maximum Power (Impp) | 12.97 A (405 W version) |
| Open Circuit Voltage (Voc) | 37.2 V (405 W version) |
| Short Circuit Current (Isc) | 13.85 A (405 W version) |
| Panel Efficiency Range | 20.5 % to 21.3 % (20.7 % typical) |
| Additional Pmax Variant | 306.38 Wp, Vmpp 28.81 V, Impp 10.63 A, Voc 34.85 V, Isc 11.26 A |
| Power Tolerance | 0 to +1 % positive tolerance only |
| Total Degradation Rate | Approximately 0.63 % per year over warranty period |
| Nominal Operating Cell Temperature | 45 ± 2 °C |
| Operating Temperature Range | −40 °C to +85 °C |
| Temperature Coefficient of Pmax | −0.35 % per °C |
| Temperature Coefficient of Voc | −0.275 % per °C |
| Temperature Coefficient of Isc | +0.045 % per °C |
| Maximum System Voltage | 1500 V DC |
| Panel Dimensions (H × W × D) | 1722 × 1134 × 30 mm |
| Weight | 21 kg per module |
| Cell Count and Type | 108 monocrystalline silicon cells |
| Glass Type and Thickness | 3.2 mm tempered glass |
| Encapsulant Material | EVA (ethylene vinyl acetate) |
| Frame Material | Anodized aluminium frame |
| Junction Box Protection Class | IP68 rated junction box |
| Cable Cross Section | 4 mm² solar cable |
Certifications: Module certification details are typically aligned with mainstream IEC and safety standards; please confirm the exact certification set with the latest manufacturer documentation.
Inverter Compatibility: Suitable for most modern string and central inverters that accept 1500 V DC systems and are sized correctly for the panel voltage and current ratings.
Environmental: Designed for outdoor installation with IP68 junction box protection and materials selected for resistance to UV exposure, moisture, and mechanical loads.
Warranty: Power warranty of 25 years at 83.3 percent output and 30 years at 81.0 percent output, supported by a low annual degradation rate around 0.63 percent; product warranty terms may vary by region and distributor.
● Available | Contact us for lead time and pricing
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