WINAICO 333W Solar Panel (WST333MG)
PayPal Pay in 4 interest-free payments of $45.00 on qualifying orders, or monthly financing with PayPal Pay Later.
Available at checkout for eligible US buyers. Subject to approval.
Ships by freight. Carrier checkout rates can’t price this correctly — we quote the exact delivered rate to your ZIP.
Orders ship via freight or ground from our Louisville, KY warehouse. Tracking provided once your order ships.
Ships via LTL freight — palletized, liftgate available. Our team confirms freight details within 1 business day.
Secure checkout · Wire/ACH accepted on quotes · Freight arranged for you
Transit estimates from Louisville, KY. Freight details →
- SKU
- PES-SPS-SOL-22599
- Unit price
- $0.54/W
Complete the job
Compatible gear contractors pair with this item
PES Supply is an authorized distributor for PES Supply. 50,000+ SKUs from 169 authorized brands.
WINAICO WST333MG 333Wp Monocrystalline Half-Cell Solar Panel
WST333MG | Monocrystalline | 108 Half-Cells | Mono | 1000V System Voltage
Product Overview
The WINAICO WST333MG 333Wp Monocrystalline Half-Cell Solar Panel delivers top performance for all residential and commercial applications. This premium module features advanced half-cell and multi-busbar technology to maximize power yield and reduce internal resistance. With an impressive 20.27% module efficiency, it captures more sunlight even in challenging weather conditions. The panel is built with high-density module technology and a durable black anodized aluminum frame for long-lasting reliability. It offers a stable long-term investment with industry-leading 25-year product and performance warranties. WINAICO specializes in premium quality solar that you can trust for over 20 years of consistent returns.
Key Benefits
Advanced Half-Cell Design: Reduces internal resistance and module degradation for higher energy yield in real-world conditions.
Superior Temperature Performance: Improved temperature coefficients ensure stable power output even during hot weather days.
High Efficiency Rating: 20.27% module efficiency captures more sunlight per square meter than standard panels.
Long-Term Warranty Protection: 25-year product and performance warranties guarantee reliable returns over decades of use.
Premium Build Quality: 3.2mm tempered glass and IP68 junction box ensure durability against environmental stress.
How It Works
The WINAICO WST333MG panel converts sunlight into electricity using 108 high-efficiency monocrystalline half-cells. Its advanced multi-busbar design increases current collection while reflective wires minimize light loss. This technology reduces internal resistance, allowing the module to maintain higher power output under varying temperatures. The half-cell structure also lowers mechanical stress, preventing micro-cracks and ensuring long-term durability. Combined with a robust black anodized frame, the panel withstands harsh weather conditions while delivering consistent energy for your solar system.
Half-Cell Technology: Splitting cells reduces current flow and internal resistance, lowering heat generation and improving efficiency.
Multi-Busbar Design: Nine busbars enhance current collection and reduce power loss, maximizing energy yield in all conditions.
Reflective Wire Integration: Reflective wires redirect unused light back into cells, increasing absorption and overall power output.
Technical Specifications
| Maximum Power (Pmax) | 333 Wp |
| Module Efficiency | 20.27% |
| Voltage at Pmax (Vmpp) | 30.8 V |
| Current at Pmax (Impp) | 10.82 A |
| Open Circuit Voltage (Voc) | 36.72 V |
| Short Circuit Current (Isc) | 11.39 A |
| Power Tolerance | 0 ~ +1.5% |
| Cell Type | Monocrystalline Half-Cell |
| Number of Cells | 108 (6 strings x 18 cells) |
| Dimensions (H/W/D) | 1589 x 1034 x 35 mm |
| Weight | 18.6 kg |
| Glass Thickness | 3.2 mm |
| Frame Type | Black Anodized Aluminium |
| Junction Box Protection | IP 68 |
| Connector Type | MC4 |
| Maximum System Voltage | 1000 V |
| Series Fuse Rating | 20 A |
| Operating Temperature Range | -40°C to +85°C |
| Temperature Coefficient of Pmax | -0.35%/°C |
| Total Degradation Rate | 0.53% per year (from 2nd year) |
Certifications & Compliance
Certifications: CEC Approved, Fire Tested Type 4, Fire Safety Class C
Inverter Compatibility: Compatible with all major grid-connected inverters
Environmental: IEC/UL 1000V System Voltage, 5400/2400 Pa Snow/Wind Load
Warranty: 25-Year Product Warranty, 25-Year Performance Warranty (85.28% output at 25 years)
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-22599 |
|---|---|
| Manufacturer | PES Supply |
| Container price | |
| Container qty | |
| Odoo id | |
| Pallet price | |
| Pallet qty | |
| Unit price | |
| Manufacturer | |
| Model number |
No documents available for this product. Contact us to request documentation.
