Our high-power monocrystalline silicon solar panel series provides two mainstream power specifications: 450W and 550W, adopting advanced 18291mm monocrystalline silicon cell chips to achieve up to 20.93% high module conversion efficiency, ideal for residential off-grid home power systems, commercial rooftop photovoltaic power stations, agricultural irrigation power supply and large-scale solar power plant projects. This PV module adopts multi-layer composite laminated structure, including high-transmittance tempered glass, EVA adhesive film, high-efficiency solar cells, anti-aging PPF backsheet and sturdy aluminum alloy frame, with rigorous layer-by-layer material screening to eliminate shoddy workmanship and cut corners. The power tolerance is controlled within 0~+5W, ensuring stable actual power output higher than nominal value, bringing higher power generation income for users. Built-in waterproof junction box equipped with anti-reverse diode and three-proof waterproof tensile connector, realizing waterproof, anti-leakage and anti-pull performance, adapting to long-term outdoor exposure in rain, snow, high temperature and severe cold environments. The 450W model is equipped with 120 pieces of 182 cells, with overall size 2094103835mm and single weight 24.0KG; the upgraded 550W version uses 144 pieces of cells, larger size 22791134*35mm and single weight 28.6KG, matching higher power demand for large power generation projects. The surface adopts 10-busbar precise welding technology for battery cells, uniform welding lines to reduce internal resistance and power loss, greatly improving daily power generation capacity under weak light cloudy weather. We support full OEM & ODM customization services including power, size, frame color and logo printing, suitable for cross-border wholesale, engineering bulk procurement and household distributed photovoltaic projects.
Product Parameter Specification of Monocrystalline Silicon Solar Panel
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Item 450W Solar Panel |
550W Solar Panel |
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Rated Power |
450W |
550W |
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Power Tolerance |
0~+5W |
0~+5W |
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Peak Voltage (Vmpp) |
34.60V |
41.64V |
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Peak Current (Impp) |
13.01A |
12.97A |
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Open Circuit Voltage (Voc) |
41.40V |
49.64V |
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Short Circuit Current (Isc) |
13.68A |
13.93A |
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Module Conversion Efficiency |
20.79% |
20.93% |
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Solar Cell Spec |
182*91mm Monocrystalline Silicon Cell |
182*91mm Monocrystalline Silicon Cell |
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Cell Quantity |
120pcs |
144pcs |
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Overall Dimension |
2094103835mm |
2279113435mm |
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Single Net Weight |
24.0KG |
28.6KG |
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Surface Glass |
High Light Transmittance Tempered Glass |
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Encapsulation Material |
Double-layer Weather-resistant EVA Film |
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Backsheet |
Anti-aging PPF Composite Backsheet |
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Frame Material |
High-strength Right-angle Aluminum Alloy Frame |
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Junction Box |
Three-proof Waterproof Junction Box with Anti-reverse Diode & Tensile Connector Busbar Design 10 Busbar Precise Welding Process |
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Protection Grade |
IP68 Waterproof & Dustproof |
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Custom Service |
Support Power, Size, Logo, Packaging Customization |
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Product Feature and Application of Monocrystalline Silicon Solar Panel
Core Product Competitive Advantages
High-Efficiency 182mm Monocrystalline Cell & 10-Busbar Welding Tech
Adopts mainstream 182mm monocrystalline silicon solar cells with excellent photoelectric conversion performance, the 10-busbar uniform welding layout reduces cell internal resistance and light shielding area, effectively improving power generation efficiency under weak light such as cloudy days, early morning and dusk. The two power models of 450W and 550W cover small household and large engineering power demand, with module efficiency up to 20.93%, bringing higher daily power output compared with conventional low-efficiency panels.
01
Multi-Layer Premium Composite Laminated Structure, All-Weather Durability
The whole panel forms a stable multi-layer composite structure from top to bottom: high-transmittance tempered glass, upper EVA adhesive film, 182 solar cells, lower EVA adhesive film, PPF anti-aging backsheet and bottom junction box. Every layer uses high-purity raw materials through strict screening: tempered glass has high light transmittance and impact resistance; double EVA film tightly laminates cells to prevent water vapor penetration; PPF backsheet resists UV aging for long-term outdoor use without yellowing and cracking. All layers are tightly bonded through high-temperature lamination process to avoid delamination failure.
02
IP68 Waterproof Junction Box with Complete Safety Protection
The rear integrated three-proof junction box is equipped with built-in anti-reverse diode to prevent reverse current damage to cells during power storage, matched with waterproof, anti-leakage and anti-tensile connecting plugs. The fully sealed box body reaches IP68 ultra-high waterproof grade, blocking rainwater, snow and dust from invading internal circuits, solving the hidden danger of short circuit caused by humid outdoor environment. The right-angle high-strength aluminum alloy frame is integrally extruded, with anti-corrosion oxide coating, strong compression and impact resistance, convenient for bracket installation on roof and ground.
03
Two Power Specifications + Full Customization Support
450W light-weight model is suitable for small villa household power generation, remote off-grid cabins and small agricultural equipment power supply; 550W high-power model is the preferred choice for commercial factory rooftops, large farm photovoltaic arrays and utility-scale solar power stations. We provide flexible customization services including power adjustment, module size, frame color, outer carton printing and brand logo engraving on the frame to meet differentiated market demands of global cross-border merchants and engineering contractors.
04
Stable Positive Power Tolerance Design
Strictly controlled 0~+5W positive power tolerance, the actual output power of each solar panel is higher than the nominal labeled power, avoiding insufficient power generation caused by negative tolerance inferior products, effectively improving the return on investment of photovoltaic power generation projects for end users.
05
Wide Application Scenarios
This high-efficiency monocrystalline solar panel is widely used in all photovoltaic power generation scenarios:
Residential household power supply: Villa rooftop off-grid energy storage system, rural self-built house daily power generation, remote mountain cabin independent power supply
Commercial & industrial projects: Factory rooftop distributed photovoltaic power stations, shopping mall building roof power generation, warehouse auxiliary power supply
Agricultural & pastoral fields: Farm irrigation water pump power supply, livestock breeding farm lighting power, greenhouse supplementary power generation
Large-scale energy projects: Centralized solar power plants, new energy photovoltaic construction projects, municipal public power supply systems
Off-grid special scenarios: Outdoor monitoring equipment power supply, mountain communication base station power supply, camping RV energy storage charging
Production Details of Monocrystalline Silicon Solar Panel
Solar Cell Welding & Lamination Production Craft
182mm monocrystalline cells are screened for consistent power before welding, adopting automatic 10-busbar welding equipment to ensure neat solder joints without virtual welding or missing welding, reducing power loss. The cells are laid flat and laminated with double EVA film and tempered glass, then sent to high-temperature laminator for integrated sealing, eliminating internal air bubbles that cause aging failure. Each batch of finished modules undergoes EL defect detection to screen out hidden cracks and dark cells, ensuring 100% qualified cell layout.
Anti-Aging PPF Backsheet & Waterproof Junction Box Assembly
The PPF composite backsheet adopts coating purification technology, with multi-layer anti-UV barrier structure to block ultraviolet ray erosion and prevent water vapor penetration. The junction box is fixed on the backsheet with high-temperature waterproof glue, and the internal diode and wiring terminals are locked with anti-loose screws; the connecting wire outlet is equipped with tensile anti-break structure to avoid wire falling off during installation. The aluminum frame is assembled with waterproof rubber strips at the splicing gap to form an overall sealed waterproof structure.
Standardized Export Packaging & Pre-Delivery Aging Test
Single solar panel is wrapped with protective foam and hard cardboard corner guards to prevent glass scratching and frame deformation during long-distance sea and air transportation. Stacked export cartons are equipped with moisture-proof desiccant, with clear printed model, power and parameter information for easy warehouse classification. All finished PV panels pass 48-hour continuous light aging power test and waterproof spray inspection before shipment to filter out defective products with insufficient power generation or poor sealing performance.
Product Qualification of Monocrystalline Silicon Solar Panel
- IP68 Waterproof & Dustproof Performance Test Certificate: Long-term outdoor rain and snow resistance qualification report.
- Monocrystalline Silicon Cell Conversion Efficiency Inspection Report: 182 cell photoelectric efficiency testing data.
- Module Power Output Tolerance Test Document: Positive 0~+5W power deviation verification.
- Aluminum Frame Anti-Corrosion & Impact Resistance Test Certificate: Outdoor anti-rust and compression performance qualification.
- EVA & PPF Backsheet UV Anti-Aging Accelerated Aging Test Record: Long service life material certification.
Deliver, Shipping and Serving of Monocrystalline Silicon Solar Panel
Packaging & Bulk Delivery
Single panel independent foam + corner guard protection; mixed 450W/550W bulk carton orders are supported for photovoltaic engineering wholesale buyers. Shockproof wooden pallet packaging can be matched for large-volume orders to avoid panel breakage during cross-border long-distance logistics. We support EXW, FOB, CIF international trade terms, with stable continuous stock supply for both 450W and 550W specifications, and fast delivery for customized OEM orders.
Comprehensive After-Sales Support for Cross-Border Sellers
We provide free English PV system installation manuals, rooftop power station scene renderings and store listing copy materials for all wholesale clients. If customers receive broken glass or damaged frames caused by logistics collision, we offer free replacement or proportional compensation according to actual damage conditions. Our professional new energy customer service team replies to all inquiries about power model selection, installation matching, wholesale bulk pricing, photovoltaic certification and customized requirements within 24 working hours, solving all solar panel related problems efficiently.
FAQ of Monocrystalline Silicon Solar Panel
Q1: What is the difference between 450W and 550W solar panels?
A: 450W adopts 120pcs 182 cells, smaller size and lighter weight, suitable for small household systems; 550W uses 144pcs cells with higher single power, larger size and heavier weight, more suitable for large commercial power stations.
Q2: Can this solar panel work normally in rainy and cloudy weather?
A: The high-efficiency monocrystalline cells have excellent weak light response performance, they can still absorb scattered light to generate electricity on cloudy days, though the power output will be lower than sunny days; IP68 waterproof structure can work normally in continuous rainy weather.
Q3: Can I customize the logo, frame color and power of the solar panel?
A: Yes, we support full OEM & ODM customization, including power adjustment, frame color, brand logo printing on frame and carton, packaging box design modification.
Q4: What is the service life of the solar panel?
A: The monocrystalline silicon cell itself has a service life of more than 25 years, the aluminum frame, tempered glass and PPF backsheet are anti-aging materials, the overall module maintains stable power generation for more than 20 years under standard outdoor use.
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